您要查找的是不是：
- post purge time 后清洁时间
- Split vent flow, purge time, PTV system temperature, and maximum sample volume were optimized. 探讨了具有溶剂排空模式的程序升温蒸发（PTV）对大体积进样的作用。
- The new president carried out a purge of disloyal army officers. 新总统对不忠诚的陆军军官进行了一次整肃。
- The usage of HFH furnace is given and a introduction of calculation of soaking time and purging time in HFH furnace is discussed based on HPH furnace of Baosteel. 在冷轧钢材的工业生产中,罩式炉退火是一个重要的环节,本文讲解了新型的HPH罩式炉的作用,并以宝钢的HPH罩式炉为背景,介绍了控制中最关键的均热时间和保护气氛冲洗时间的计算方法。
- Fruit juices ferment if they are kept a long time. 果汁若是放置很久，就会发酵。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
- A dose of this stuff will purge you! 这种药只须一剂就能让你通便！
- I think the work can be completed ahead of time. 我认为这项工作能提前完成。
- He will come on time even though it rains. 即使下雨，他还是会准时来的。
- Reading occupies most of my free time. 阅读占去了我大部分的闲暇时间。
- I am afraid the last post has been dispatched. 恐怕末班邮件已经发出了。
- We may purge water by distillation. 我们可以用蒸馏法使水净化。
- All bookings must be made by post. 所有预约都必须用信函形式。
- I need some time to orient my thinking. 我需要一些时间来使我的思想适应。
- By parcel post our samples were sent. 我们的样品是通过邮包寄送的。
- No one can alter the fact, ex post facto. 没有人能在事后改变事实本身。
- How long is the post tenable for? 这个职位任期多长？
- A transistorize radio takes no time to warm up. 晶体管收音机不需要预热时间。
- At that time he had two helpers. 当时他有两个助手。
- I went to the post office to mail the letters. 我去邮局寄信。
