low voltage source under是什么意思

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用法例句

Synthesis of crystalline unsaturated polyester for low pressure SMC;

低压片状模塑料用结晶不饱和聚酯树脂的合成

Design improvement of open low pressure acetylene generator;

敞开式低压乙炔发生器设计改进

Application of JW2000 mm low pressure-uniform temperature type methanol synthesis reactor;

JWФ2000mm低压均温型甲醇合成塔应用

It is sucessfully applied to the temperature control system for the low-pressure vacuun sinteringfurnaces.

在模糊理论的基础上提出了一种改进算法──参数目调整Ｆｕｚｚｙ－ＰＩ算法，并成功地应用于低压真空烧结炉的控温系统中。

Calculating reference was deficiency for engineering design on muddy water delivery in low-pressure pipeline irrigation system.

浑水低压管道输水灌溉工程设计中,由于缺乏相关计算依据,其临界不淤流速多借用有关管道输送的临界不淤流速公式计算确定,管道阻力损失计算一般直接利用清水管道计算公式,因此其计算误差较大,适用性和可靠性差。

The phenomenon of condensation of low-pressure vapor in a horizontal tube is studied.

结合蒸发式冷凝器的设计，对水平管内低压蒸汽冷凝现象进行了实验研究。

Tow questions relates to design and type selection of low-voltage incoming circuit breaker;

低压进线断路器设计选型的两个问题

Low-voltage power distribution system grounding of hydropower station;

浅议水电站低压配电系统接地

The article introduces the application of geographical information system(GIS)in low-voltage power distribu- tion in order to improve the power supply service and the power enterprises benefit.

文章通过介绍地理信息系统(GIS)及其在低压配电中的应用,以提高供电服务质量和电力企业效益。