A central force is a radial force which depends only on the distance from the origin.
有心力是一种径向力，它的大小只取于离原点的距离。
Parallel deviation, radial deviation and distance between sealing faces of flange can't exceed the values in table 6 if there is no specification in design document or by the manufacturer.
法兰密封面间的平行偏差，径向偏差及间距，当设计或制造厂未规定时，不应超过表 6 的规定值。
In order to minish the impact of power off upon production, radial way of distribution is adopted, that is: to give out five main line circuits to site five main distribution panels from low-voltage cabinets, which respectively supply power for tower crane, concrete pump, elevator, construction lighting, machines and tools power. The main distribution box, switch box and the distance over 100m between distribution box and switch box should be earthed repeatedly and well connected to PE line.
为减少因停电对生产的影响面，故采用放射式的配电方式，即：从变压器配电室低压柜引出五个干线回路至施工现场五个总配电柜，分别供塔吊，地泵，升降机，施工照明以及机具用电，在总配电箱及开关箱，以及距离超过100m的箱内做重复接地，并与保护零线可靠联接。
In this research, three full scale jacked-in piles are penetrated into the saturated soft clay and mostly studied by monitoring the law of lateral displacement with depth and radial distance to pile-sinking, the law of land upheaval with depth of penetration and radial distance to pile-sinking, and the law of pore pressure with penetration depth and time. Characteristics of maximum excess pore water pressure with radial distance and depth are also analyzed.
在饱和软黏土地基中进行了3根足尺静压桩的压入试验，重点监测了沉桩时的侧向位移随深度和距桩轴不同距离、地面隆起量随桩的贯入深度和距桩轴不同距离、孔隙压力随桩的贯入深度和时间的变化规律，并分析了超静孔隙水压力最大值沿径向和深度的变化特性。
The study was conducted to investigate the jet pulse characteristics and the effects of parameters, including standoff distance, radial distance, nozzle pressure and ambient pressure.
研究结果表明，在实验条件下各种风琴管喷嘴的压力脉动存在最优喷距，无因次最优喷距都在8～14范围内，风琴管自振空化射流的冲击压力脉动峰值和脉动幅度分别比普通喷嘴高37%和24%；最大脉动幅度并不出现在射流轴心，而是偏离轴心一段径向距离；随着围压的增加，脉动峰值压力随着喷距的衰减速度明显加快，而脉动频率基本不随围压、压降和喷距的变化而变化，保持在1.38KHz左右。
Radial runout DFr of gear ring is the maximum variation of distance from the center gear to the gage head which contacts the gear tooth at middle tooth profile of standard gear rack, testing radial runout of gear ring is put into practice.
齿轮径向跳动DFr，在齿轮一转范围内，测头在齿槽内或齿轮上，与齿高中部双面接触，测头相对于齿轮轴线的最大变动量。为此，齿径向跳动的检查是借具有原始齿条齿形的测量头进行。
The axial direction and radial direction spectrum is blue-shift or red-shift. On axial direction, the blue-shift or red-shift increases with the relative propagation distance, truncation parameter, refractive index constant increases and temporal coherence length decreases, and the spectral-shift gurgitation becom gragually steady. On radial direction, spectral switches appear, and the truncation parameter, spatial coherence parameter, temporal coherence length and refractive index constant also influence critical position and transition height et al.
光谱沿轴向、径向均出现蓝移或红移，随着相对传输距离、光阑截断参数、空间相干参数及折射率结构常数的增大，脉冲时间相干长度的减小，轴向光谱蓝移量或红移量逐渐增大，并且由明显地起伏逐渐趋于稳定，沿径向出现了光谱开关，光阑截断参数、脉冲时间相干长度、空间相干参数和折射率结构常数对光谱开关的数目、光谱开关的临界位置和光谱跃迁量等也产生影响。
Meanwhile, comparing the difference of space expressing to soil properties for hilly microrelief by six interpolate methods that including inverse distance weighing, local polynomial interpolation, radial basis functions, ordinary kriging, universal kriging, and disjunctive kriging.
结果表明，与原系统抽样法的插值结果相比，在抽样理论法条件下，这6种插值方法对于大部分土壤性质具有较高的表达精度；在综合优化法条件下，各种插值方法误差均在允许范围内，且在某些土壤性质及比较标准上还较抽样理论法更接近于原系统抽样法。
The dimension accuracy of the machined part can be obtained by NC definite distance grinding or NC automatic meter, As using automatic meter, machining accuracy may achieve 0.008mmin radial direction.
加工零件的尺寸精度即可用定程磨削的方法获得，也可用自动量仪实现，当用自动量仪时，精度可达0.008mm。
Results indicate that radial distance of the bushing from the rotor center and the radius of the hemispherical bushing significantly affect wear rate, and minimzing both two values will result in lowest wear for micro-rotor systems in MEMS. However, it is noted that the bearing radius sets a lower limit on the hemispherical bushing radius since the bushings are located beyond the rotor inner radius. It is desirable to reduce their effects on friction and wear on micro-rotors by regulating the radius of the bushing and the radial distance of the bushing from the rotor center within permissive range of micro-fabrication. Severe wear exists with increasing applied load and rotating speed of the rotor. Stress distributions in the contact region are different from Hertz solutions due to the convergence stresses apearing on the uncontinuous curvature line and the contact pressures display symmetrical parabola in the contact region.
结果表明：在MEMS微转子系统中，微转子轴衬偏心距离和转子轴衬半径影响线磨损率，以两者减至最小为较理想，但须注意设计中轴承半径的限制，并使轴衬偏心距离大于轴承内半径；在转子加工制造许可的范围内，可以通过调整转子轴衬的半径和偏心距离来减少摩擦磨损对微电机的影响，随着转子所承受载荷和转子旋转速度的增加，其磨损严重；接触区的应力分布不同于经典Hertz解，这是由于应力集中出现在不连续的曲率线上，且接触区的接触压力呈现轴对称抛物线状分布。
It was also found that the third chain perturbs the distance between mass centers of the two previous chains and causes the distance increasing, which was also supported by the radial distribution function analysis.
第三个链的融入使得原来两个链的质心距离有所增加，链段的邻接程度减弱。
Under certain conditions, this reduction of the center distance will lead to additional radial pressures between two meshing gears in the gearing.
在一定条件下，这种中心距缩减会导致互相啮合的两齿轮间产生附加径向压力。
The experimental results show that the droplet velocity at high injection pressure is relatively greater than that at ordinary injection pressure and rises with the increase of injection pressure When the injection pressure meets 139MPa, the highest droplet velocity can be over 250m/s at the point which is 30mm apart from the nozzle. The highest droplet velocity in the axis of the spray decreases with the increase of the distance from the sampling point to the nozzle. However, the reduction of the highest droplet velocity is much smaller near the nozzle. The velocity distribution of the droplets in the spray along the radial direction is smooth, which is different from that of a gas jet.
实验结果表明：与常规压力相比高压喷雾粒子速度有明显的提高；随压力的提高，高压喷雾中的粒子速度有升高趋势，在喷油压力为139MPa时，在距喷嘴出口30mm处，粒子最大速度仍达到250m/s以上；在喷雾碰壁前，在喷雾轴线方向上随距喷嘴距离的增大，粒子平均速度降低，但粒子最大平均速度有一个变化很小的初始段，在径向粒子速度的变化是非常平坦的，其分布不同于气态射流，并且在喷雾可见边界之外仍有高速粒子存在；喷雾碰壁后，粒子速度有明显下降，且粒子速度与壁面间夹角不大；高压喷雾对空气卷吸的速度测量结果表明：由喷雾锥的根部到喷雾锥头部，喷雾对空气的作用由卷吸逐渐转变为排推。
At constant viscosity, by increasing the liquid flow rate, the liquid film's velocity is increased; at the same experiment condition, the frequency of the liquid film is same at the same radial direction; the air current has minimum effect on liquid film bottom flow velocity, while it has an obvious effect on liquid film surface flow velocity. The longer the distance between liquid film and the inlet, the lower the pulsatory frequency and longer the wavelength.
在粘度基本不变的情况下，随着液体质量流率的增加，液膜流动速度随之增加；在同一个实验条件下，沿圆管径向各质点的频率基本保持不变；气流场速度对液膜底层流动速度影响很小，对于液膜表面流动速度有着较大的影响；沿液膜流动方向，液膜的脉动速度逐渐增加，脉动频率降低，脉动波长变长，与报道的通过快速摄像得到的液膜发展趋势一致，证实用PDA研究液膜流动是可行的。
These errors are sensitive to the distance between the vortex center and the radar, the noise of the data, the, the mean tangential wind speed, and the mean radial wind speed.
反演结果的误差则是对於涡旋中心距雷达之距离、资料中的杂讯、以及轴对称径向风较为敏感。
MAIN OUTCOME MEASURES: Angles related to the proximal end of the radius: the axis of the radial neck and diaphysis, the range of contact of radians between the articular circumference and the ulnar and radial notch at the neutral position, the maximum range of pronation of the forearm, the maximum range of supination of the forearm, and the range of non-contact of radian; Results of height, length, transverse and sagittal diameters related to the proximal end of the radius: the length of the proximal end of the radius, the medial height of the articular circumference, the lateral height of the articular circumference, the anterior height of the articular circumference, the posterior height of the articular circumference, the maximum depth of the fovea of radial head, the length of the lateral arc of the proximal end of the radius, the maximum vertical height of the lateral arc, the transverse diameter of the radial neck above radial tuberosity, the distance between the proximal end of radial head and the superior border of radial tuberosity, the distance between the proximal end of radial head and the middle of radial tuberosity, the transverse diameter of radial head, the sagittal diameter of radial head, and the diameter of the fovea of radial head.
主要观察指标：①桡骨近端相关角度：桡骨颈干角、桡骨头环状关节面和尺骨桡骨切迹在前臂中立位时接触弧、前臂最大旋前位时接触弧度、前臂最大旋后位时接触弧度、非接触弧度；②桡骨近端相关高度、长度、横径、矢状径等：桡骨近端长度、环状关节面内侧、外侧、前侧及后侧高度、桡骨头凹最大深度、桡骨近端外侧弧长度、外侧弧的最大垂直高度、桡骨转子上缘桡骨颈横径、桡骨转子上缘-桡骨头近端距离、桡骨转子中部-桡骨头近端距离、桡骨头横径、桡骨头矢状径、桡骨头凹直径。
In order to keep rational radial clearance and decrease the part fit gap, the combined method of positive equidistance plus positive move distance is proposed to modify the cycloid disk tooth profile, so that the processing tooth profile and the rotate angle reparing shape are almost consisitent, and the transmission precision is enhanced.
为了保证合理的径向间隙，减少零件配合的侧隙，通过对摆线轮齿廓采用正等距加正移距的组合方式修形，以保证加工齿廓与转角修形齿廓基本吻合，提高传动精度。
For fixed gas inlet area, radial degradation degree is the lowest in the inlet of tube inwall, and biggest at a distance from inlet of tube inwall.
固定燃气入口面积时，入口处管内壁面的径向降解程度最小，距入口沿轴向一段距离处管内壁面的径向降解程度最大；
Interpreted the formation and function of the testing center distance tolerance zone (the radial composite testing tolerance zone), passed an opinion to the meanings of one symbol;
解释了检测中心距公差带（径向综合测试公差带）的形成和作用，对个别代号的含义提出了看法；
The informations about the structure of these glassy metals such as the average atomic distance, the nearest coordination number and the radius of short range order were obtained from the radial distribution functions RDF (r).
求出了它们的干涉函数I（s）和原子径向分布函数RDF（r），并由此获得了有关结构信息的原子平均距离、最近邻配位数和短程有序畴半径。