It is demonstrated that there exists a part of high pressure on the body surface of the rocket near the fore-located nozzles, thus forming a overturning moment.
指出,当超音速飞行时,在前喷管附近的弹体表面上产生一个局部高压区,由此形成一个翻转力矩。
But the forecast effects are not quite the same for the different levels and months and the fore-casts for low pressure systems are not very satisfactory.
但对不同层次、不同月份的预报效果不够稳定,而且对低值系统预报能力较差。
The grate will be, at intervals, performed according to the settled time or to the automatic control of pressure head between fore and after-grate.
格栅的运行可按设定的时间间隔运行,也可根据格栅前后水位差自动控制。
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