main seal是什么意思

网络释义

用法例句

The application and develop of underground water seal oil storeroom;

地下水封储油库的应用与发展

The water seal was discussed in detail to show the principle and measure of subsection cleaning of whole pipe-network.

重点讲述了如何利用水封方法来实现对整个管网的分段清洗的原理和措施。

In the light of the disadvantages in operation of the conventional water seal, the water seal was researched.

针对传统式水封运行存在的弊病,对水封提出了科研攻关,并研制出真空给水式水封,解决了传统式水封长流水、污染环境等问题,创造了可观的环保效益与经济效益。

Aiming at the existing problems of poor sealing effect and service and maintenance of an amphibious tank′s turret ring,this paper adopts a particular technique scheme which takes the solution combining active sealing and passive fast clearout and conducts specific design and true-vehicle tank experiment for this solution,which validates the feasibility and validity of this scheme.

针对某水陆坦克炮塔座圈存在密封效果差、维护保养困难等问题,提出了主动密封和被动快速清洗相结合的解决方案,并对方案进行了具体的设计和实车试验,验证了方案的可行性和有效性。

water-seal latrine unit

(成套)水封式厕所

The test tube is closed at one end with a hydraulic seal.

试管的一端为水封所封闭。

Light and water are necessary to plants.

光和水封植物是必要的。

Study on the Gate s Retractile Seal Engineering Research with High Water-pressure;

高水头弧形闸门伸缩式水封止水研究

multistring hydraulic-set packer

多管水力坐封封隔器

a self - sealing envelope.

（不用胶水）封口的信封

hydro-set permanent packer

永久式水力坐封封隔器

an adhesive envelope

封口涂有胶水的信封

He licked the gummed flap and sealed it shut.

他舐了舐信封的胶水层，封上了信封。

a watertight compartment, joint, seal

水密室、 水密接合、水密封.

Waterproof and Shutoff for Closing of Pressured Dewatering Well Located in Foundation Pit

基坑内承压降水井封井的防水与封堵

fasten(the cover,flap,etc of sth)with glue,paste,etc

（用胶水、浆糊等）粘住（封套、信封口等）

closed aqueduct system

密封式输水管道系统

seals without the application of moisture.

不需要用水就可以封口。

water pressure test for strength and tightness

水压强度和密封性试验

hydraulic-set dual hanger

水力坐封双管悬挂器

hook wall flooding packer

注水井悬挂式封隔器

WATER-PROOF ARMORED-CABLE PACKING GLAND

防水铠装电缆密封接头