高压

A low minimum operating supply voltage of 2.9V, and a low shutdown quiescent current of less than 1μA, make the LT3757 ideally suited for battery-operated systems.The LT3757 features soft-start and frequency foldback functions to limit inductor current during start-up and output short-circuit.The device is available in a small 10-lead DFN (3mmx 3mm) or MSOP package.

本文介绍了LT3757主要特性，方框图以及典型应用电路，包括高效升压转换器， 3.3V输入，5V/10A输出升压转换器， 8-16V输入24V/2A输出升压转换器，高压反激电源电路，以及5.5V-36V输入，12V/2A输出SEPIC转换器和非绝缘的反相SLIC电源。

Methods Forty-six cases of PPH treated in the 2nd Artillery General Hospital and Peking Union Medical College Hospital from January 2000 to May 2009 were analyzed retrospectively, including 2 cases of Abernethy abnormality.

回顾性分析第二炮兵总医院及北京协和医院2000年1月至2009年5月期间收治的46例肝前型门静脉高压症（包括2例Abernethy畸形）患者的临床资料。

In some cases, abnormally high pressure inside the eyeball also can result.

在一些案例中，眼球内反常的高压也是原因之一。

Of living tissue in a state of abnormally high tension .

在反常的高压状态之下。

Such oceanic growth can be removed similarly by divers underwater or by normal above-water waterjetting should the ship be drawn onto a dry dock.

可以用高压枪在船坞清除，但如不要将船拖到船坞上清洗，亦可用无后挫力水枪，利用潜水人，进行水下清除。

The process avoids complex operation such as column chromatography, high pressure and absolute conditions.

本方法避免了柱色谱分离，高压操作，无水操作等复杂的工艺过程。

The reverse permeability coefficients of CO2 is affected by pressure difference and decreases evidently with the increase of the absolute value of pressure difference.

CO_2的反向渗透系数受N_2高压侧的影响显著，随CO_2对N_2压差绝对值的增大迅速减小。

The sample was digested by high-pressure vessel with HNO3/H2O2 as the solvent. By measuring 200Hg/202Hg abundance ratio and adding quantity of the spike, the content of Hg was determined. Moreover, the uncertainty of results were also analyzed and evaluated.

样品处理采用高压密封焖罐酸溶样技术，将样品与202Hg稀释剂混合，通过所加稀释剂的量和测量混合样品中200Hg/202Hg的丰度比，准确计算出样品中Hg元素的含量，同时对测量结果的不确定度进行分析和评定。

Main products of the Corp. are power transmission and transformation equipments: 220kV and 145kV SF6 H.V. Switchgear, 145kV, 170kV, 220kV and 550kV H.

公司主要生产输变电设备；220kV、145kV SF6高压开关；145kV、170kV、220kV、550kV高压SF6互感器。

ZGR3(XRNT5)-15.5H.V.current-limiting back-up fuse for short-circuit protection of oil-immersed transformer(here-under fuse) is availab-le ailable for H.V. indoor electric system,with rated voltage 1 5.5Kv,rated cu rrent up to 175A, 50Hz a.c..It is used for protecting from short-circuit for power transformer.

ZGR3 (XRNT5)-15.5油浸式变压器短路保护用高压限流后备熔断件适用于交流50Hz，额定电压15.5KV，额定电流至75A的高压户内电力系统，作为电力变压器的短路保护。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。