abbr.passive underwater fire control feasibility study 被动的水下发射控制的现实性研究;
例句:
The camels rolled in the white dust , raising puffs of cloud.
骆驼在白茫茫的沙里打滚, 扬起阵阵尘雾.
A brisk breeze puffs the clouds away.
轻快的微风吹开云朵.
The wind had risen from its uncertain puffs into a steady blow.
风也不是一阵隔一阵的了,而是不停地刮着.