静力学

The forms in Figure 1 must be capable of resisting both hydrostatic and gravity loads.

在图 1 的表格一定能够抵抗流体静力学和地心引力负荷。

The cylinders are initially hydrostatically testedto pressures two to three times the service pressure.

最初，在压力为工作压力的两到三倍的情况下对钢瓶进行流体静力学测试。

Cylinders in carbon dioxide service are hydrostatically tested upon manufacture, and every five years thereafter at 5/3 times the service pressure.

用于二氧化碳的钢瓶在制造时经过了流体静力学测试，之后每五年进行一次在5/3倍工作压力下的测试。

In addition, gas producers must make certain the cylinder closure is completely leak-tight, and that cylinders are internally inspected and hydrostatically tested at the prescribed time intervals.

另外，气体生产商必须确定钢瓶的密封是彻底防漏的，在指定时间间隔内要进行钢瓶内部检查和流体静力学测试。

In addition, gas producers must make certain the cylinder closure is completely leak-tight, and that cylinders are internally inspected and hydrostatically tested at the prescribe d time intervals.

另外，气体生产商必须确定钢瓶的密封是彻底防漏的，在指定时间间隔内要进行钢瓶内部检查和流体静力学测试。

In addition, gas producers must make certain the cylinder closure is completely leak-tight, and that cylinders are internally inspect ed and hydrostatically tested at the prescribed time intervals.

另外，气体生产商必须确定钢瓶的密封是彻底防漏的，在指定时间间隔内要进行钢瓶内部检查和流体静力学测试。

Cylinders and mobile tubes are hydrostatically tested upon manufacture and tested periodically thereafter at 5/3 times the service pressure, as specified by DOT regulations.

正如DOT规范所规定的，钢瓶和移动管道在制造时经过了流体静力学测试，随后还要在压力为工作压力的5/3倍时定时测试。

With the static model, the correction effect for each mm of surgery was calculated after the horizontal recti were resected or recessed, or both recti recessed, or one rectus resected and its antagonist recessed, and the result matched that of clinical operations.

用本文提出的眼球静力学模型，计算了单水平直肌缩短或止点移位、双水平直肌移位、单水平直肌缩短加其拮抗肌的移位时，手术量与眼位矫正量的关系。结果表明，用三维三线模型计算的结果与临床数据符合的较好。

The static analysis for the flat reflector of interferometer in unassembled and assembled is studied by finite element method, horizontal and vertical placement under gravity load is analyzed. The calculated PV and RMS values are used to determine whether the distortion and the structure of fixation are reasonable or not.

应用有限元方法对干涉仪的装配前后的平面反射镜进行了静力学分析，对其在重力作用下水平和垂直放置时进行了分析，通过计算镜面变形的PV值和RMS值来评价是否超差及固定反射镜的结构是否合理。

Starting from the output signal-to-noise ratio of vibration tables, the basic requirements of background noise of the foundation are determined, then the dynamic analysis of the foundation for tables and a laser vibrometer, and the static analysis of the foundation for the laser vibrometer are done with finite element method.

首先以振动台台面输出信噪比为出发点，确定了超低频标准振动台基础噪声的基本要求；然后采用有限元分析的数值方法，分别对振动台基础与激光测振仪基础作动力学分析，再对激光测振仪基础作静力学分析。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。