1.
On σ-weakly Hereditarily Closure-preserved Family and CC_ω-spaces;
关于σ-弱遗传闭包保持集族和CC_ω空间
2.
Fire Door Keep Locked Shut
请保持防火门关闭并锁住
3.
"Tip lowest float (stop float), all pumps should remain off."
最低尖端浮子(关闭浮子),所有泵都应该保持关闭状态。
4.
Keep valves closed when cylinders are not in service or empty.
当钢瓶没有使用或是空瓶的时候，保持阀门关闭。
5.
Provides options for closing your programs and logging off, or for leaving your programs running and switching to another user.
提供关闭程序并注销、或者保持您的程序\
6.
It‘ s better for you to shut up and keep quiet. it‘ s much much better。
你最好闭上嘴，保持安静，这就非常非常好了。
7.
It's better for you to shut up and keep quiet. it's much much better.
你（国）好闭上嘴，保持安静，这才是非常非常好的”。
8.
Inter-sessional Workshop on Health, the Environment and Sustainable Development
保健、环境和可持续发展问题闭会期间讲习班
9.
A SELF-HOLDING ELECTROMAGNETIC VALVE WITH THE FUNCTION OF SELF-CLOSEDOWN WHEN POWER CUTTING AND ZERO CONSUMPTION;
具有断电自关闭功能的零功耗自保持电磁阀
10.
Use Briefcase to keep copies of your files updated.
使用“公文包”使您的文件副本保持最新。
11.
Cigarettes are wrapped in foil to keep them fresh.
香烟用箔纸包以保持新鲜。
12.
The field includes three world record holders.
参赛者中包括三名世界记录保持者.
13.
Our foil packets seal the flavour in.
我们用锡纸包装以保持原味.
14.
The field includes three world record holders
参赛者中包括三名世界记录保持者。
15.
The property of being mathematically closed.
闭合，闭包闭合精确程度的特性
16.
If you want a new friend you should close one eye. If you want to keep him as a friend you should close both eyes.
如果想要交一个新朋友，则要闭上一只眼睛。如果想要保持朋友关系，则要闭上双眼。
17.
tight-lipped (esp to restrain one's emotion or to keep silent);grim-looking
双唇紧闭的（尤指克制感情或保持沉默）;表情冷酷的.
18.
After fitting of the valve, the valve should be maintained in a closed position to prevent any contamination from entering the cylinder.
连接好阀门后，阀门应保持关闭位置，为防止任何污染进入气瓶。