伸缩

An exercise designed to strengthen the extensor muscles of the leg.

一种旨在加强腿部伸缩肌肉的练习。

First, the wheelset is fixed and rotated by the device used hi vehicle depot as usual. Second, the center line of wheelset axis is determined by a device called axis-center probe. Last, the acting device for sensor can draw a whole felloe profile, which is made up of parallel-pole device and rotating-probe.

鉴于此，本文给出了一种全新的测量方案：采用车辆段普遍使用的转轮器实现被测轮对的定位；采用车轴基准探尺测定被测轮对的轴线；采用并联式伸缩机构和旋转测头作为传感器的执行机构，测定轮辋断面的轮廓线。

The precision of a new project for measuring the wheelset geometric parameters is studied once again in this paper. First, the wheelset is fixed and rotated by the device used in vehicle depot as usual. Second, the center line of wheelset axis is determined by a device called axis-center probe. Last, the acting device for sensor can draw a whole felloe profile, which is made up of parallel-pole device and rotating-probe.

本文研究一种新的非接触测量方法的精度，测量方法的核心是：采用车辆段普遍使用的转轮器实现被测轮对的粗定位；采用车轴基准探尺确定被测轮对的轴线；采用并联式伸缩机构和旋转测头座，带动电涡流位移传感器扫描车轮外形轮廓线，得到相关参数。

The cavitation erosion behavior of CrMnN ferri te-austenite duplex stainless steel in distilled water and 3%NaCl solution has b een investigated by using a magnetostrictive-induced cavitation facility.The fre e-corrosion potential and polarization curve under quiescent and cavitating cond ition have been measured by electrochemical technique.

利用磁致伸缩空蚀实验机研究了CrMnN双相不锈钢在3%NaCl溶液中的空蚀行为，采用电化学技术测量了静态和空蚀条件下的自腐蚀电位变化和动电位扫描极化曲线。

According to temperature crack and desiccation crack of brick-mixing structure, it analyzes its cause and features of cracks, and puts forward prevention measures from setting expansion joint、adopting ferroconcrete roof、setting reinforcement band.

针对砖混结构的温度裂缝和干缩裂缝，对其裂缝的特征及其产生的原因作了分析，从设置伸缩缝、采用钢筋混凝土屋盖、设置配筋带等方面，提出了防治裂缝产生的措施。

In 1880, August Fiedler, forestry commissioner of Prince Reuss, managed to build the first telescopic sight that really did work.

在1880年8月fiedler ，林业处处长王子reuss的，有管理的兴建首伸缩视线确实做了工作。

Production of nylon tape / Magic tape, tape, gum tape, voltage tape, elastic tape, magic Regardless of the first tape, hook and body hair (back-to-back) Hook , can not afford wool tape, small hook tape, soft hook tape, hot melt adhesive self-adhesive tape, acrylic adhesive tape, not bristles tape, waterproof fire tape, plastic tape hook , retractable tape, wire bundles with special tape, magic gum, red gum-type circular magic, magic cable tie, hook body hair with magic, magichead, special magic, Mody surgery paste, gum paste operation Mody, voltage operation paste Mody, Mody elastic paste operation

生产各种尼龙粘扣带/魔术贴、粘扣带、背胶粘扣带、电压粘扣带、松紧粘扣带、魔姑头粘扣带、勾毛同体粘扣带、不起毛粘扣带、细勾粘扣带、软钩粘扣带、热融胶自粘带、压克力自粘带、不刷毛粘扣带、防水防火粘扣带、塑胶勾粘扣带、伸缩粘扣带、电线捆绑带、特殊粘扣带、背胶魔术贴、背胶冲型圆形魔术贴、捆电线魔术贴、勾毛同体魔术贴、毛茹头魔术贴、特殊魔术贴、么术贴、背胶么术贴、电压么术贴、松紧么术贴

Supporting type is suggested to be developed into 3-prop to improve adaptability besides 2-prop and 4-prop. The difference of caving difficulty degree of coal seam is the base of caving coal method at high, medium and low position. Caving with small step and open caving flashboard used widely not only cause serious mixture of coal and rock but also hinder the improvement of top coal recovery. So we suggest caving with large step or closing caving door. Four-bar-mechanism of hydraulic support restricts development of new style caving powered support. Stabilization framework of expansion link and all-shield caving tail beam at high, medium and low position are introduced here.

支架支护型式，除了两柱、四柱以外，建议开发三柱支架以改善适应性；煤层冒放性的差异，是高位、中位和低位放煤方法存在和使用的依据；目前广泛采用的小步距放煤和开放式放煤插板不仅造成严重混矸漏矸，也妨碍顶煤回收率的进一步提高，建议采用大步距放煤和可关闭放煤口；液压支架四连杆稳定机构，制约了新型放顶煤液压支架的开发，介绍了液压支架伸缩杆稳定机构及全掩护拖移高位、中位和低位放煤尾梁。

We thus arrive at the serious biological paradox flippantly termed the RRR dilemma: nature's failure to produce rats with retractable roller skates.

这样，我们便得出了一个被戏称为RRR的严肃的生物学悖论：大自然未能产生出有可伸缩的滑轮溜冰鞋的老鼠。

We thus arrive at the serious biological paradox flippantly termed the RRR retractable roller skates.

这样， 的严肃的生物学悖论：子呢这样，我们便得出了一个被戏称为 RRR 的严肃的生物学悖论：大自然未能产生出有可伸缩的滑轮这样溜冰鞋的老鼠。

In the United States, chronic alcoholism and hepatitis C are the most common ones.

在美国，慢性酒精中毒，肝炎是最常见的。

If you have any questions, you can contact me anytime.

如果有任何问题，你可以随时联系我。