该装置可以用来测试弹丸末速，作为较大靶面的触发装置，为其他弹道测试仪器提供同步信号。
The wide-angle sky screen can be used for measuring the terminal velocity of the projectile, and providing synchronous signal for other trajectory measurement apparatus as the trigger device of the .
在颗粒受力分析及沉降末速计算基础上，首先选取了沉降速度模型，进而对脉动干扰沉降理论做了初步探讨。
With analysis of forces on particle and calculation of terminal velocities, terminal velocity models are selected, and then Pulse jamming settlement theory was discussed.
讨论了变工况下凝汽式汽轮机末级的变工况特点，如反动度的变化规律，余速损失，级前压力的变化特性。
For example, the regular change of reaction degree, the loss of exhausted velocity , the change characteristics of the pressure exerted on the last stage .
冷凝式汽轮机排汽系统是将低压缸末级出口余速动能加以利用的关键部件。
Exhaust system is of great importance to the overall performance of the steam turbine.
冷凝式汽轮机排汽系统是将低压缸末级出口余速动能加以利用的关键部件。
Exhaust system is of great importance to the overall performance of the steam turbine.
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