Best practice: To save space in the analysis database, you should delete the output tables from older runs when they are no longer needed.

最佳实践：为节省分析数据库的空间，应当从旧有运行中删除不需要的输出表。

youdao

In practice, the amount of memory set aside for survivor space is adjusted on the fly depending on the percentage of objects that survive each collection.

实际上，预留为幸存者空间的内存量会根据在每次收集中幸存下来的对象的百分比进行实时调整。

youdao

In practice, though, most vocabularies that use mixed content are not so sensitive to white space normalization, so don't worry too much about pretty-printing.

但在实践中，使用混合内容的多数词汇表对空白规范化没有这么敏感，因此不用过于担心精细打印。

youdao

Next year, the Chinese plan to launch a small space laboratory to practice docking of spacecraft in orbit.

VOA: special.2010.04.28

And next year, the country is launching a small space lab to practice docking in orbit - an essential part of manned missions to the Moon and Mars.

VOA: standard.2010.04.21

During the dive, which takes up to four hours due to the high density of the water (it is filled with certain chemicals plus air pressure to simulate the circumstances found in space), the cosmonauts in training practice space walking -- and may lose a few kilos off their waist line in the strenuous process.

BBC: The dated future of Russia��s Star City

Over there, the accountants add to earnings a paper gain for supposed appreciation in the properties, a practice that in the U.S. would get them space in the cell next to Bernie Ebbers'.

FORBES: The U.K. has joined the REIT revolution. Buy sparingly.

In practice, an animal that roams hundreds of miles in the wild can find itself contained in a space no bigger than a living room.

BBC: Exotic pets: Why do Americans keep dangerous animals?