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关注：1
2013-05-23 12:21
求翻译：氧气系统中的手动阀必须开启自如，不准进行冲击或急速地操作。对不常用的切断装置必须定期检查其有效性。是什么意思？ 待解决
 悬赏分：1
- 离问题结束还有
氧气系统中的手动阀必须开启自如，不准进行冲击或急速地操作。对不常用的切断装置必须定期检查其有效性。
问题补充： |
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2013-05-23 12:21:38
正在翻译，请等待...
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2013-05-23 12:23:18
oxygen in the system must be opened manually valve allowed freely, shocks or rapid operation. not commonly used to cut off device must be regularly checked for its validity.
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2013-05-23 12:24:58
In the oxygen system hand operated valve must open freely, does not permit to carry on the impact or to operate rapidly.To not the commonly used breaking arrangement must periodic inspection its validity.
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2013-05-23 12:26:38
Manually in the oxygen system valves must be opened freely, be allowed to impact or rapid operation. Cutting device for infrequently used must be regularly checked for validity.
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2013-05-23 12:28:18
Manually in the oxygen system valves must be opened freely, be allowed to impact or rapid operation. Cutting device for infrequently used must be regularly checked for validity.
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