According to the purity requirement for Si powder, a cold plasma reaction chamber with long drop distance and high reaction rate is provided in the paper.

根据硅粉纯化的要求，提供了一种长落程和高反应速率的冷等离体反应器。

youdao

It is cheaper than calling long distance, and a lot more convenient than waiting until Sunday for the telephone rates to drop.

这比打长途电话便宜，也比等到周日电话费降下来方便。

youdao

Have a friend or family member drop you off at a given distance and then run home.

让你的朋友或家庭成员在你跑到一定距离时提醒你，让你跑回家。

youdao

Keatley, who had opened the scoring with a penalty, missed the conversion but then landed a lovely drop goal from distance.

BBC: Connacht 22-21 Edinburgh

Though I laughed at the warning sign depicting a stick-figure falling head-first off the cliffs, I made sure to keep a safe distance from the drop-off for fear that the wind might actually propel me over.

BBC: Where waterfalls outnumber people