受拉泊松系数回归曲线存在上升段和下降段；
The tension Poisson ratio is negative, and its regression curve shows upward section and downward section.
此类结构滞回曲线的滞回环饱满，骨架曲线下降段比较平缓；
The load and displacement loop is plump, and the descent part of framework curve is smooth in the structure.
本文详细分析了出现在电流上升段，坪段及下降段密度极限破裂的特征。
In this paper, we carefully analyze the characteristics of density limit disruptions during current ramp-up, flattop and ramp down phases.
通过采用一缓流的垂直下降段，测量油水两相流中的含水率值，获得了好的结果。
Using a vertical downward section in which flow is very slowly, water holdup in oil-water two phase flow is measured, and a good result is obtained.
文中，我们用M型子星的气流来解释色指数曲线的下降段和上升段深度不等的现象。
The unequal depths of falling and rising branches of the colour curves can be explained by the gas stream from the M-type supergiant component.
下降段底部四周装有8个火箭发动机，能使下降速度达到每秒0.75米的稳定速度。
The descent stage has eight rocket motors on its corners. These will slow its fall to a relatively sedate 0.75 metres a second.
讨论了发电成本曲线、单价曲线和成本微增率曲线，指出火电成本单价曲线存在下降段。
This paper discusses generation cost curves, unit price curves and incremental cost curves, and points out that there might be declining segments in thermal-power unit price curve.
在气门下降段，将气门的落座速度和下降段缓冲包角取小些，使得气门落座平稳，无激烈的冲击现象。
During the drop, better have a lower speed of resitting and a smaller wrap Angle, which can have a smooth resitting without fierce impact.
该模型为体现其自然循环的特性，将下降段与上升段区分开，并假定两者之间不存在质量和能量的交换。
In order to research its natural circulation, the downcomer part and the riser part is distinguished, where there are no mass and energy transferred between them.
云层形成在圆柱形旋转气流循环的上升段，即空气抬升阶段；而沿气流循环的下降段(空气下沉)的天空依然晴朗。
Clouds form along the upward cycle in the cylinders, where air is rising, and skies remain clear along the downward cycle, where air is falling.
云层形成在圆柱形旋转气流循环的上升段，即空气抬升阶段；而沿气流循环的下降段(空气下沉)的天空依然晴朗。
Clouds form along the upward cycle in the cylinders, where air is rising, and skies remain clear along the downward cycle, where air is falling.
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