This paper compares the pipe-expansion screw with old-type mild steel expansion bolt in the their functions and application scope, and introduces the properties and application prospect of the new proprietary product.
通过对涨管螺钉与老式铁膨胀螺栓使用功能和运用范围的对比，介绍了这一专利新产品的性能特点及应用前景。
This paper compares the pipe-expansion screw with old-type mild steel expansion bolt in the their function s and application scope, and introduces the properties and application prospect of the new proprietary product.
通过对涨管螺钉与老式铁膨胀螺栓使用功能和运用范围的对比，介绍了这一专利新产品的性能特点及应用前景。
The corn grit was used as the raw material in a single-screw extruder to study the effects of feed compositions on physical properties of loose-fill extrudates. The response surface methodology with three variables and five levels was used as the experimental design. The process variables were the ratios of polyvinyl alcohol, Calcium hydroxideCa(OH2, and urea. The extrudate's physical properties such as expansion diameter, radial expansion ratio, longitudinal expansion, and bulk density and mechanical properties such as compressibility, spring index, energy absorption of each cycle, total energy absorption and the biodegradable properties were investigated.
本实验是利用单轴挤压机，以食用玉米粉为主原料，添加不同比例之聚乙烯醇、氢氧化钙和尿素，使用三变数五层级的反应曲面法之中心组合旋转设计，分别探讨加工参数（PVA、氢氧化钙与尿素的添加比例）对挤压缓冲产品物理性状（膨发直径、径向膨发率、纵向膨发、假密度）、机械性状（压缩性、弹性指数、每周期吸收能量、总吸收能量）及生物分解性之影响。
Spartina good at producing self-locking, two-level fast teeth, five incision, the plum blossom in the 2.60-band stigma, the stigma of being Wu Jiaoxing with security since the attacks of confidentiality locking screw, screws and other expansion products.
擅长生产三棱自锁、双线高低快牙、五切口、梅花型内六角带柱头、内正五角星带柱头防伪保密锁紧自攻螺钉、膨胀螺钉等系列产品。
Design Program a worm and screw transmission using turbo power, to achieve the purpose of expansion.
设计方案方案一利用涡轮蜗杆以及丝杠传动力，达到扩张的目的。
Leading products are reversible Grinding machine, Central hammer crusher, shaker, volatility screen, roller screen, a round shaker, pressure-measuring machines to coal, coal-to the impeller, impeller to the powder machine, feeding trough Machine, buried en masse to the coal, belt conveyors, screw Unloading machines, air preheater of me, lock gas, silencers, expansion, fishing Slag, down-the-hole drilling, hydraulic hammer broken, dust bag, Rotating cylinder, such as water film ESP more than 20 products.
主导产品有可逆式细碎机、环锤式破碎机、振动筛、波动筛、滚轴筛、圆振动筛、耐压计量式给煤机、叶轮给煤机、叶轮给粉机、槽式给料机、埋刮板给煤机、带式输送机、螺旋卸车机、空气预热器管箱、锁气器、消音器、膨胀器、捞渣机、潜孔钻、液压破碎锤、布袋除尘器、旋筒水膜除尘器等二十余系列产品。
Key words:miniscrew implant; screw; median palatine suture; dog; rapid maxillary expansion
微小种植体；螺旋扩弓器；腭中缝；犬；上颌快速扩弓
The effects of the screw configuration and screw speed of extruder on the expansion rate of extruded feeds were also introduced in detail.
论述了挤压饲料的主要特点，基本原料配方和操作参数对挤压饲料品质的影响，详细介绍了螺杆结构、螺杆转速等变化对水产饲料膨化率的影响。
The extrudate lengths (axial expansion) were higher at a screw speed of 300 r/min than at 200 r/min; they also increased with the salt and sugar.
在螺杆速度为300r/min时，挤出物的长度（轴向延长）要高于200r/min，其长度还随含盐量和含糖量增加而增加。
A thermal expansion valve and an electronic expansion valve was tested in a Air Cooled Screw Heat Pump respectively.
在风冷螺杆热泵机组上对电子膨胀阀与热力膨胀阀进行了机组性能的对比试验。
In expanded feed processes, increases of material moisture content, feed rate, screw speed and barrel temperature enhanced starch gelatinization, in-vitro protein digestibility and expansion ratio, respectively.
膨化饲料生产中，物料水分含量、喂料速度、螺杆转速和机筒温度的增加都使淀粉糊化度、蛋白质体外消化率和膨化度增大。
As a result to analysis the failure type of the female screw envelope in the rice expansion machine.
本文通过膨化机螺套失效形式的分析，研究了其磨损机理。
Conclusion Screw expansion appliance can rapidly expand dental arch to relatively large extent and is an effective method of the crossbite correction in the primary dentition after cleft lip or/and palate repair.
结论采用螺旋扩大矫治器扩弓速度快，扩弓幅度大，是一种较理想的矫治唇腭裂修复术后乳牙反畸形的方法。
Local corn grist was extruded by using a Brabender Lab-station DSE-25 Twin-Screw Extruder with various barrel temperature and moisture; and the effects of these processing conditions on extruder torque, pressure, expansion rate, and product moisture were studied.
以玉米糁为材料，采用DSE-25型双螺杆挤压膨化实验室工作站为加工设备，分析了加工温度和物料含水量对扭矩、压力、膨化率和产品含水量的影响。
Energy-saving effect analysis of replacing the expansion valve with helical screw expander in refrigerating equipment
用螺杆机代替制冷装置膨胀阀的节能效果分析
The utility model consists of an expansion shell, an expansion bracing and a screw.
本实用新型是由一个膨胀壳、膨胀拉条及螺丝相连组成。
Drilling holes for screw on the head of high pressure vessels The key parameters and action law of the separation device of the expansion tube are initially determined by the project test.
通过方案选择试验初步确定了膨胀管分离装置的重要参数和作用规律，通过系统的研究确定了凹口螺栓式和分离板式膨胀管分离装置的关键参数。
Effects of Expansion Fashion and Expansion Quantity on Retention of Cement - expanded Composite Screw Post
膨胀方式和膨胀量对粘固膨胀复合型螺纹桩固位力的影响
Biomechanical evaluation of an expansion cancellous screw in fixation of Femoral neck fracture
膨胀式松质骨螺钉用于股骨颈骨折内固定的生物力学测试
The feasibility of replacing expansion bolt by chemical glue screw bolt on glass curtain wall was discussed.
讨论了化学胶粘螺栓运用于玻璃幕墙的可行性。