在文中所研究的引射燃烧室结构条件下，存在一个最佳二次喷管出口面积，它能使引射火箭的推力达到最大。

There exists an optimal exit area of secondary nozzle to result in a maximum thrust of rocket ejector in the light of the investigated ejector chamber structure.

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本场最佳球员！小个子的边锋参与了所有的进球，他风骚的跑位帮助博格·达尼首开纪录，在上半场结束前他一脚低射攻破米兰大门！

The diminutive winger had a hand in all of the goals as his mazy run led to Bogdani's opener before he found the back of the net with a low drive before the end of the first half.

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气顶底水油藏油井射孔时既要考虑避水，又要考虑避气，因此存在一个最佳射开位置的问题。

For a well producing from reservoir with bottom water and gas cap, the water and gas avoidances must lie taken into consideration for its position of optimum perforation.

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