查询词典 air pressure

It is also used to calibrate Air Data Computers, Flight Data Recorders, Auto pilots and Cabin pressure controllers.

它也用于校准大气数据计算机，飞行数据记录器，自动飞行员和机舱压力控制器。

Piston-engined aircraft and turboprops have air compressors to maintain cabin pressure.

活塞发动机和涡桨发动机的飞机有压气机来控制客舱的压强。

This essay analyzes the method and procedure of ice-making recorded in Huai Nan Wan Bi Shu, and creatively proposes that the principle of "ice-making in summer" is refrigeration through the quick evaporation of water to absorb heat under low pressure, and that ice is made on the fine silk at the mouth of an urn, but not inside the urn at its bottom as it was conventionally thought. The essay points out three necessary conditions which should be fulfilled in order to realize "making ice in summer": low relative humidity (less than 26%), large volume of the urn (about 100 L) and proper air temperature (about 20℃).

分析《淮南万毕术》所载制冰方法和过程，提出低压下水快速蒸发吸热制冷是"夏造冰"的制冰原理；结冰的部位不是传统观点所认为的瓮底，而是在瓮口的嫌上；指出要实现"夏造冰"，需满足三个条件：相对湿度低（低于26%）、瓮的容积大（100升左右）、空气的温度适当（20℃左右）。

Today, before the north-west by a ridge of high pressure air control, China's main airport for the eastern part of sunny to cloudy weather.????

今日，受高压脊前西北气流控制，我国东部地区主要机场为晴到多云天气。

He invented the first successful high-altitude pressure suit in the 1930's, so he wouldn't pass out from lack of oxygen when he was thousands of feet up in the air.

他想打破以往的飞行高度纪录，于是在1930年成功地发明了第一件高空压力服，这使他在几千尺的高空上不会因缺氧而昏迷。

The relation equation of pressure drop in oil tank vers burning time and the air volume is established.

分析了几种便携式燃烧器系统的特点和应用的热负荷范围；导出了油箱容积、气箱容积、充气间隔的压力降和燃烧时间的关系。

On the other hand, if the primary air fan is upstream of the pulverizer, then it exerts a positive pressure on the pulverizer.

在另一方面，如果主风扇在磨机上流物流中，磨机中存在正压。

When open-air use, has the rainproof equipment, this time the hoist crane gross weight and the wheel-pressure approximately increase 5%.

当露天使用时，带有防雨设备，此时起重机总重及轮压约增加5％。

The pressure attenuation of stress wave and the effect of blasting load on ground concrete structure in soil and rock blasting were investigated using LS_DYNA procedure in the aspect of mechanical properties of soil and rock, location of the goal and the explosives, as well as the rarefaction waves of air etc.

利用LS_DYNA程序，从岩土本身的力学性能、目标与炸药的位置、空气稀疏波的影响等多个角度出发，研究了岩土爆破中应力波的压力衰减以及爆破对地表混凝土结构物的影响，得到了其中的规律，为建筑结构的防护提供了一些思路与依据。

The interactions among large air voids, the dynamic hydraulic pressure, the non-uniformly distributed load, the overload, the environment condition and the material lead to the deficiency of the adhesion between asphalt and aggregate. The immigration of the asphalt leads to the new bleeding and inside raveling. The pumping and settlement occurred once the water penetrates the whole asphalt layer.

大空隙率、动水压力、荷载的非均布、超载以及气候条件与路面材料的相互作用造成了沥青与集料粘附性的相对不足，面层内部沥青膜剥落后向上部迁移，这是新泛油、内部松散的产生机理；更为严重的情况下，外界水直接贯穿沥青面层对基层顶面的冲刷将诱发泛浆和沉陷。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。