The adsorbed nitrogen is released from the zeolite by dropping the pressure to a lower level (often under vacuum)during the PSA/VSA process.

在PSA/VSA过程中，通过把压力降到更低的水平(通常在真空之下)，可以把吸附的氮从沸石中释放出来。

属类：产品说明书-产品安全-

The work of this class has been dropping behind recently

这个班级的功课近来一直在退步。

属类：综合句库--

This process is more satisfactory than the use of dry ice which can be destructive.(Some rainmakers were dropping huge blocks of dry ice that made holes in the roofs of buildings.)

这个办法比使用干冰更令人满意，干冰具有破坏性(有些造雨者将大块干冰投下，砸穿了屋顶)。

属类：综合句库--

The business of the company was dropping off.

这家公司的生意日益清淡。

属类：综合句库--

Among them there will be the outbreak of a world war, the dropping of atom bombs on our heads, and the appearance of Berias, Kao Kangs, Chang Kuo-taos and Chen Tu-hsius

这里面包括打世界大战，在我们头上甩原子弹，出贝利亚，出高岗，出张国涛、陈独秀。

属类：综合句库--

The bar-room was now full of the boarders who had been dropping in the night previous

这时，酒吧间里挤满了昨晚前来投宿的客人。

属类：综合句库--

These forms are now dropping out of use

这些形式现在渐渐废弃。

属类：综合句库--

An attendant could cut the rope, dropping the control into the core and preventing a runaway reaction

值班人员可砍断绳索，让控制棒插入反应堆芯从而制止失控反应。

属类：综合句库--

When he grew excited or enthusiastic, however, he dropped back into the old slurring and the dropping of final consonants

只是一激动或兴奋他那含糊不清的老毛病又会发作，字尾的辅音也会吞掉。

属类：综合句库--

Producers, by financing genres as long as the public responds to them and by dropping them when they lose popularity, seem to support the view that audiences determine film content.

制片人则对公众喜爱的电影赞助,同时放弃公众不喜欢的电影，他们认为公众决定电影内容。

属类：行业术语-传媒-电子媒体