气压上

The air pressure under the wing is greater than the air pressure on top of the wing.

机翼下面的气压大于机翼上面的气压。

Main contents and conclusions are: 1 The ionization current was measured continuously by a charge-integration method with a computer after the introduction of radon into the chamber.

主要内容及结论：1充氡后利用计算机连续进行电离电流累积测量，得到了精细的电流随时间的变化曲线，可清楚看出氡及其子体的生成衰变造成的电离电流的生长—稳定—衰减过程，与理论计算值进行了比较，由电离电流衰减速度的变化得出氡吸附作用的影响，并测量到电离室冲洗后氡的反扩散现象；2由已知活度的标准源定出相对测量的刻度系数K值，K=24.62 Bq／pA，对同一个监测源以半年为周期进行多次测量后得出稳定性符合要求；3通过测量电离电流和气压的关系曲线以及不同气压下的饱和曲线，确定了常规的工作条件；4测量了盐酸清洗电离室内表面降低本底的效果；5不确定度分析表明相对测氡的扩展不确定度(k=2)小于5％，由本底涨落得出探测下限为0.5 Bq；6理论上对壁损失修正进行了计算，实验上保持电离室工作在饱和区的情况下，测量了不同气压下电离电流的变化，从中得出了壁损失随气压变化的规律，可以看出，电离电流的实测值和计算值随气压变化规律基本一致；当气压大于125 kPa时，端效应等其它因素造成的影响不大于2％，因而在此工作条件下，测量电离电流后通过计算修正壁损失可以实现近似的绝对测氡，提出了进一步提高绝对测量准确度的方法。

Theoretically, the new operator can describe the function of surface observation in Data Assimilation better.

理论上说，新的地面气压观测算子能更好地描述近地面气压观测在模式中的物理特性。

In this paper, we design a new surface pressure operator by pressure extrapolation scheme of static equilibrium and the linearity relation between the temperature and pressure.

本文重点研究了利用GRAPES模式变量计算实际台站高度上的气压的计算方案，对低于模式面最底层的地面观测点，设计了一种新的地面气压观测算子。

This paper introduces the principle and performance of pressure relief valve in de- tail,and sets up the mathematical model for design and calculation of pressure relief valve on the basis of pneumatic and gastight theory in order to provid...

本文在阐述气压调节阀的工作原理及性能特点的基础上，应用气动、密封理论，推导建立了气压调节阀设计计算数学型，为我国自行研制该类装置提供参考。

On some occasions,two-step orthogonal toggle force-amplifying press based on pneumatic-mechanical compound transmission systems can be used instead of hydraulic transmission systems that cause environmental pollution.

而气压传动系统中的工作介质，是洁净的压缩空气，从这一点上来说，气压传动可以说是一种绿色化的传动技术。目前也有少量压力机采用气压传动，但是都是使用有杆活塞缸，这种气缸一般刚性比较差，且空间利用率低。

During the New Moon (the 1st of a lunar month) and the Full Moon (the 15th of a lunar month) when the Earth, Moon, and Sun lie in a straight line, the solar and the lunar tides overlap and the sea-level pressure is lower than the mean at the Airport, because the tide-producing force induced by the Sun and Moon reaches maximum. On the other hand, during the First Quarter (the 7th day of a lunar month) and the Last Quarter (the 21st of a lunar month) the Sun-Earth's and the Moon-Earth's relative positions are perpendicular to each other with respect to Earth, the solar and the lunar tides interfere mutually, the Airport sea-level pressure is greater than the annual mean due to the tide-producing force reaching minimum.

松山机场在朔望月里，每逢阴历朔日或望日，受太阳与月球之引潮力(Tide-producing force)方向一致，太阳潮和太阴潮重叠影响，其全日和逐时平均海平面气压比年平均为低；而每逢上弦和下弦时，日地与月地的相对位置成直角，太阴潮和太阳潮相干扰，其全日和逐时平均海平面气压则比全年平均为高。

The series products are developed a new fire fighting water supply equipment in accordance with the national standard GB50016-2001 (Code of design on building fire protection and prevention), GB 50045-1995 (Code for fire protection design of tall buildings), and standard GA 30 -2002 (Requirement and test methods of water supply fixed equipment used for fire-protection), based on the traditional pneumatic water supply equipment, combined with the modern advantages technology and water supply demands for fire protection.

XQZ型消防气压自动供水设备，是根据《建设设计防火规范》、《高层民用建筑设计防火规范》及公安部颁布的消防行业标准《GA30-92》，综合吸收了现代气压给水设备的特点和消防用水工况；在改革传统气压给水设备的基础上研制的一种新型消防供水设备。

"The mechanical pressure altimeter measures atmospheric pressure relative to sea level through a series of bellows, gears, and springs, which move pointers on a dial."

气压式高度表测量气压是参照海平面的，透过一连串的真空膜盒、齿轮和弹簧来移动刻度盘上的指针。

"The mechanical pressure altimeter measures atmospheric pressure relative to sea level through a series of bellow s, gears, and springs, which move pointers on a dial."

气压式高度表测量气压是参照海平面的，透过一连串的真空膜盒、齿轮和弹簧来移动刻度盘上的指针。

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。