Optimal Thickness Analysis of the Air Heat Insulation Layer Embedded in a Concrete Oil Tank

PASS ( Plug and Switch System) is a kind of assembled electrical equipment developed in the recent years. Its technology and economy performance index is between AIS and GIS ( the air insulation switchgear and the gas insulation switchgear).

插式开关装置PASS（Plug and Switch System）是最近几年从国外引进的一种组合电器设备，技术经济性能指标介于敞开式（AIS）设备和全封闭式（GIS）设备之间。

The paper compares the features technically and economically between mixed technology switchgear ( MTS) and air insulation switchgear ( AIS), exhibits the superiority of MTS application in ultra-high voltage substation.

分别对混合技术开关设备和常规敞开式开关设备进行了详细的技术和经济比较，并提出了混合技术开关设备在超高压变电所中应用的优越性。

Numerical Simulation and Experiment of Electron Avalanche Process for Air Insulation in Short Gap

短间隙空气绝缘电子崩过程数值模拟及实验

This paper expounds the engineering conditions and geological conditions, construction methods and main mechanical equipment of the air intake shaft of Xinyuan Coal Mine, Shanxi Province, and introduces emphatically the construction technique, construction organization and management.

阐述了山西新元矿井进风立井的工程及地质概况、施工方法和主要机械设备，重点介绍了该工程井筒的施工技术及施工组织和管理。

Quick-construction of Air Intake Shaft of Xinyuan Coal Mine

新元矿井进风立井井筒快速施工

Therefore, the tow feeding system was modified: enlarging air chamber in air jacket of the jet;

为此，对其供丝系统进行了技术改进：增大了喷嘴内外套间的气腔；

Heating elements in all three walls, bottom, and door create a warm air jacket around the inner chamber to guarantee superior temperature uniformity with no hot spots.

通用培养箱采用三面内壁、箱底、门构造的暖气气套系统确保箱体内部温度均匀。

The air pump draws in vast amounts of air lift [ suction] pump

气泵吸进了大量的空气。吸取泵，吸取抽机，提水泵

Lift fan of air cushion vehicle The performance study of air-lift pump

气垫船垫升风扇气举装置特性研究

A Theoretical and Experimental Study on Air--Lift Pump Phenomena

气泡泵起现象的理论和实验研究

On the air-lift pump for a vertical tubular leacher

用于垂直管道浸取器的空气升液泵性能研究

The performance study of air-lift pump

气举装置特性研究

The water flow velocity in the suction pipe, which is crucial for evaluating the performance on pumping fish, can be measured by the pumped water flow rate of the riser in an air lift pump system.

气力提升泵的水输送量反映了提升管进口的流速情况，而进口流速是衡量吸鱼效果的重要因素。

Preliminary experiment on several factors affecting the performance of air lift pump

气力提升泵性能影响因子的初步试验

Air lock Test of Motorcycle Air Filter

摩托车空滤器的气阻测试技术

Intake Air Lock Modification A Bidirectional Air Valve and its Application

进料锁风阀的改造双向气阀及其应用

Analysis of three air lock faults in water systems

水系统中三例气塞故障的分析

Sums up the causes of three air lock faults in projects. Considers that the air lock should not be ignored as a common faults of water system, and should be paid attention to during design, construction and operation management.

对工程中遇到的三例水系统气塞故障加以总结，分析其原因，认为气塞是建筑水系统常见故障，应从设计、施工、运行管理三方面加以重视。

Analysis of Surface Air Temperature Change in Macau During 1901-2007

1901&2007年澳门地面气温变化的分析

In recent years, the increasing traffic and demand of resource induced by economic boom and influx of tourists has deteriorated the environmental air quality in Macau dramatically.

近年澳门经济发展迅速，游客数量持续上升，对市内交通、餐饮与居住资源的需求均构成巨大的压力，同时亦对澳门半岛环境空气质量造成一定的负面影响。