For natural circulation, it is shown that parallel flow in the tubes of vertically inverted U-tube team generator (UTSG) can be non-uniform, and reverse flow occurs within some tubes.

自然循环条件下，立式倒u型管蒸汽发生器(UTSG)并联倒u型传热管内存在非均匀流动，部分传热管出现倒流。

youdao

I don't think I will ever feel as powerless as I did when I was on my knees, wearing a U. s. military uniform in the Middle East, forced by my superior to shove my head between another man's legs.

我不认为当我在中东身着军服在上级的逼迫下跪在地上在其它男人的腿间摇摆着我的头时会觉得自己永远软弱。

youdao

I don't think I will ever feel as powerless as I did when I was on my knees, wearing a U. s. military uniform in the Middle East, forced by my superior to shove my head between another man's legs.

我不认为当我在中东身着军服在上级的逼迫下跪在地上在其它男人的腿间摇摆着我的头时会觉得自己永远软弱。

youdao