密闭

The article introduces a fire autoalarm which can be used in large airtight oil depot or fuel storehouse.

摘要文章提出了一种大型密闭油库，密闭燃油机房等场所用到火灾自动报警装置。

Biscuits will stay crisp if you keep them in an airtight tin.

把饼干放到一个密闭铁罐里, 它就会保持松脆。

Built-in high up to 1500MAH free maintenance seaied lead-acid rechargeable hattery.

1、内置可充电免维护、容量高1500Mah，密闭铅酸蓄电池。

Objective To study the effect of treatment intractable ascites by ascites direct veinous reinfusion closed continuously.

目探讨连续密闭式腹水直接静脉回输治顽固性腹水。

The electric generator applies a mode of semitight twin flue and reduces noise and room temperature;therefore the customer regards it highly.

发电机采用了半密闭双风道方式，极大地降低噪音和室温，深受客户欢迎。