The reference and echo signal were separately measured when the hard target was still, in positive rotation and negative rotation.
利用配合目标静止时测得参考信号与回波信号的关系可得参考信号的角度矫正因子为1.1949，使用该矫正因子测得硬目标在正转和反转时转速与真实转速之间的误差小于
Mandibular intramatrix rotaion showed a positive correlation with total rotation, and a negative relation to matrix rotaion in treated group.
功能矫形治疗后下颌基质内旋转与总旋转成正相关，与基质旋转成负相关。
During the work process of electrical screw press, motors loaded with large inertia must alternate between positive and negative rotation frequently, and it is necessary to realize a quick and steady torque output and to avoid an abnormally high temperature rising.
电动螺旋压力机要求电动机在大惯量负载条件下、频繁起动时能够快速实现恒定的转矩输出，同时避免过高的起动电流，这取决于先进的交流调速方法的运用。
On the base of roundly analyzing and studying phase relation of stator magnetometive force and rotor one of brushless DC motor, the main purpose of this paper is to analyze thoroughly positive and negative rotation logic layout of sensorless BLDCM, and explains the differences between BLDCM and sensorless BLDCM.
依据无刷直流电动机定转子磁势的相位关系，深入分析无位置传感器无刷直流电动机正反转控制的逻辑编排，并分析了无位置传感器和有位置传感器正、反转控制的不同。
The module has been designed to combine a maximum of 16 generators and 16 mains supplies up to a maximum of 20 in one system, e. g. 16 generators and 4 mains supplies (DSE5560 required to synchronise with the mains) The module has the ability to monitor under/over generator volts, over current, under/over generator frequency, under speed, over speed, charge fail, emergency stop, low oil pressure, high engine temperature, fail to start, low/high DC battery volts, fail to stop, generator short circuit protection, reverse power, generator phase rotation error, earth fault protection, loss of speed signal, fail to open, fail to close, out of sync and MPU open circuit failure, negative phase sequence and loss of excitation.
该模块的设计结合起来的和最多16台发电机和16个水管供应最多为20个在一个系统中，例如：16台发电机和4水管用品（ DSE5560需要同步的水管）模块有能力监督下/超过发电机电压，过电流，根据/超过发电机频率下，速度，比速度，充电失败，紧急停止，低油价的压力，发动机温度高，无法启动，低/高。
Positive frequencies are produced by anti clockwise rotation and negative frequencies by clockwise rotation.
正频率是用逆时针旋转来产生，而负频率是用顺时针旋转来产生。
To further study this problem, the optical axis is rotated by an arbitrary angle. A striking phenomenon is discovered that the Brewster angle is always equal to the rotation angle. This is because the waves in the direction perpendicular to the optical axis become evanescent since the permittivity is positive while the permeability is negative in this direction.
然后进一步的研究了主轴不垂直于界面的情况，发现主轴转动的角度恰好等于此时的Brewster角，这是因为此时垂直于主轴的方向上介电常数为正磁导率为负，只有倏逝波而没有可传播的波存在，因此反射系数为0。
The compressive strength, anti-tensile and rotation strength of the scaffolds were measured by almighty vitodynamics machine. 2、To make biologic safe test of nano-zirconia calcium phosphate scaffolds in vivo and vitro with polyethylene as a negative control and phenylic alcohol of 6.4% as positive control, include cell toxicity test, systemic acute toxic test, hemolysis test, the cytotoxicity and histocompatibility of the scaffolds were evaluated to offer valuable theoretical evidence for clinical safe application.
万能生物力学机测定骨支架的压缩强度、抗拉伸强度和旋转强度。2、以聚乙烯做阴性参照材料、6.4%苯酚溶液做阳性对照材料，对纳米氧化锆/磷酸钙骨支架进行了体内、外生物安全性试验研究，包括细胞毒性试验、全身急性毒性试验、溶血试验，评价其细胞毒性、组织相容性，为确保该材料临床应用的安全性提供有价值的理论依据。
Positive frequencies are produced by anticlockwise rotation and negative frequencies by clockwise rotation.
正频率是用逆时针旋转来产生，而负频率是用顺时针旋转来产生。
The test results show that the negative bending regions of continuous composite beams have sufficient plastic rotation ability and ductility to develop full moment redistribution by controlling the parameter of force ratio R.
试验结果表明，通过控制力比R，压型钢板组合梁支座负弯矩区具有足够的塑性转动能力和延性，能够保证连续梁形成充分的塑性内力重分布。
The existence conditions of negative refraction and the influence of the rotation angle on the total reflection and total transmission phenomenon are discussed for each case.
讨论了不同情况下发生负折射的条件及旋转角对全反射和全透射现象的影响。
Peasant households usually hold negative attitude toward the disease-resistant variety technology, but hold positive attitude toward insect-resistant variety, crop rotation technology, chemical prevention and cure technology, especially to the latter.
农户对抗病品种技术持否定态度，对抗虫品种、轮作技术、药剂防治技术特别是对后者持肯定态度。
Conclusion. Patients with a greater Cobb angle or rotation angle in the thoracic curve had a negative self-image.
在胸廓曲线中有更大Cobb角或旋转角的病人有一个不良的自我感觉。
It is found in the high-speed dynamic resolution that jetting accompanies rotation in introducing air and maintaining negative pressure in the suck-chamber favors to improve air-suck process.
高速动态解析发现，射流在引射气体过程中伴随着旋转运动，保持吸入室一定的负压有利于改善吸气过程。
Air-suction metering device is the use of high-speed blower vacuum chamber to produce negative pressure in the vacuum chamber under negative pressure adsorption seeds, and seed set in conjunction with the rotation.
气吸式排种器是利用高速风机产生负压传给真空室，在真空室负压作用下吸附种子，并随排种盘一起转动。
Research of the Impeller with the Positive and Negative Rotation for the Sludge Digestion Tank
污泥消化池搅拌用叶轮的设计与试验研究
Job-satisfaction had a significantly negative correlation with job rotation and quiting intention, and negatively predicted both job rotation and job-quiting intention.
工作满意度与换岗意向、换职意向存在显著的负相关，并对二者都具有负向预测作用。
Perceived organizational support had a significantly negative correlation with job rotation and job-quitting intention, and only job-quitting intention was negatively predicted by POS.
组织支持感与换岗意向、换职意向存在显著的负相关，但仅对换职意向具有负向预测作用；
The peak frequencies of rotation speed and transformational frequencies of positive DEP and negative DEP were derived, which was used to deduce the expressions of the membrane capacitance and conductance.
推导了电旋转低频峰值转速所对应频率以及正、负介电泳力之间转换频率的表达式，并以此为基础推导细胞膜电容和膜电导与溶液电导率之间的函数关系式。
As the engagement of the unidirectional fasten piece and fasten rim, negative direction rotation is avoided to locate the tool apron steadily to the sliding rail when cutting paper.
裁纸时，由于单向卡掣件和卡掣缘的配合，可以阻止刀座的逆向转动，从而使刀座可靠地定位于滑块上。