How many times should my keywords appear on my pages?

The specific epithet variously did or did not repeat a key word from the phrase-name.

种加词不同程度地重复或不重复同片语名称的某个关键词.

Air to surface vessel radar

侦察海面舰艇的飞机监视雷达

A Lloyd's policy form of insurance on an air cushion vessel hovercraft Class For Refrigerating Equipment for Dealing with Boil-off Gas on a Liquefied Gas Carrier

劳氏气垫船运输保险单劳埃德船级社处理液化气船蒸发气体制冷设备入级

A Lloyd's policy form of insurance on an air cushion vessel hovercraft

劳氏气垫船运输保险单

Fracture Mechanics Test on High Speed Wind Tunnel Resource Air Vessel Material and the Application of Safety Evaluations

高速风洞气源气罐材料断裂力学测试及其安全评定

Defect on air pressure vessel materials of high speed wind tunnel resource was inspected by means of ultrasonic radiographic and magnetic particle. Development and application of advance air source system for wind tunnel

对高速风洞气源气罐全厚材料用超声、磁粉、射线等方法进行了缺陷检测。先进风洞气源系统的研制与运行

Design of a Equipment for Checking Air Tightness of Pressure Vessel

一种容器气密性检测装置的设计

Protection Study Avoiding Transient Negative Pressure by Air Vessel of Thermal Power Station Pumping System

压力空气罐对火电厂补给水系统瞬态负压的防护研究

Air vessel is a quite effective device to prevent water hammer in long-distance water-supply pipelines.

抗水锤压力罐是一种有效的控制长距离输水管道停泵水锤的设施。

This paper presents which condition should be followed and what methods and procedures should be proceeded in order to in right way select the pneumatic booster valve and its small air vessel, and indicates some concepts should be focused on when selection.

本文介绍了应当根据哪些条件、按怎样的方法和程序，才能正确选择气动增压阀及其附属小气罐，并提示了选用时应当注意的一些概念。

A water vessel and a air vessel have been chosen as specimen.

选择水压力罐和气稳压罐为实验对象。

This research work is the theoretical reference to design and debug air vessel parameters in practical engineering.

本文的研究内容为抗水锤压力罐的优化设计和运行调试提供了参考依据，具有一定的理论及应用意义。

Study on the Risk Assessment of Liquefied Cargos of LPG Carrier; A Lloyd's policy form of insurance on an air cushion vessel hovercraft

液化气船液货储运安全风险评估研究劳氏气垫船运输保险单

Through this design the automation for indenting on steel air vessel has been realized. Anticorrosion Treatment of LPG Cylinders

该机器的研制解决长期以来未能实现的在高压容器钢瓶肩部球面打钢印的自动化问题。液化石油气钢瓶防腐蚀问题

It is a trial and error process that designers usually depend on empirical formulas and some graphs to choose air vessel parameters in practical engineering.

在实际工程中，设计人员一般依据经验公式或相关图表选择压力罐的参数，而且通常要进行反复地试算。

There are some components that direct contact with the pumped medium in the reciprocating diaphragm pump, such as diaphragm, pump valve and air vessel, so these components are key components that influence the operating life of the reciprocating diaphragm pump.

隔膜、泵阀与空气室是往复式隔膜泵中与输送介质直接接触的部件，因此，隔膜、泵阀与空气室是影响隔膜泵使用寿命长短的关键部件。

By deduced air dissolution equation, it was found that when air dissolved and then released the proportion of oxygen would decrease and the air space in the dissolved air vessel would probably accumulate oxygen.

推导多组分空气溶解方程后发现，空气先溶解再释放后，氧气所占比例下降，滤罐空气层中可能积累O2。

Safety valves for marine air vessel

GB/T14087-1993船用空气瓶安全阀

One of the main parameters of designing the flotation system for water treat-ment is the recycle water ratio or its corresponding air/ water ratio, so that it is necessary to determine the efficiency of air saturation in the vessel.

水处理的气浮的系统的一个主要设计参数是溶气水回流比或者是相应的气水比，因此必需确定溶气缸的溶气效率。

Using a seam auto-tracking technique with arc sensor, seam tracking experiments for circumferential lap weld of automobile air storage vessel have been performed in this paper. In addition, influence factors of tracking effect and weld quality are analyzed.

采用电弧传感式焊缝自动跟踪技术，对汽车贮气筒环缝搭接进行了自动跟踪工艺试验，并对影响跟踪效果和焊缝质量的因素进行了分析。