澳大利亚最近停止了一次水泵航运,原来是因为能够被用于核能发电厂(也用于更有利的用途)。
Australia recently stopped a shipment of pumps that, it turned out, were capable of being used in nuclear power plants (as well as for more benign USES).
在5年里我不得不拆卸了那个水泵4次。
In five years I had to strip the water pump down four times.
包括两个冷却剂系统水泵在内的备用组件都在舱里,安装工作被普遍认为是艰难的,必须进行两次太空行走。
Spare components are on board, including two coolant system pumps, but installation is considered difficult and two spacewalks will be required.
有一次安妮把海伦的手放在水泵出水口下,并且在她的另一支手上重复拼写water 的时候,海伦突然明白了,她的学习有了重大突破。
Helen’s breakthrough came when Annie held her hand under a water pump while spelling “water” into her other hand repeatedly.
据日本媒体报道,这是一次输电设施运行水泵的失败。
The problem, according to Japanese media reports, is a loss of grid electricity to run the pumps that bring in cooling water.
8分钟一个操作员注意到二次回路备用水泵的阀门是关的,于是打开了阀门。二次回路现在运作正常。
8 min An operator notices that the valves for the backup pumps in the secondary loop are off. He opens the valves. The secondary side now operating normally.
4秒二次回路中的备用水泵自动启动。
4 SEC Backup pumps within the secondary loop automatically turn on.
0秒二次回路中的水泵因为一个小故障而自动关闭。
0 SEC the pumps in the secondary loop shut down automatically, due to a slight malfunction.
自吸式水泵第一次使用时,需要加引水,以后则不必再加引水。
Self suction pump is used for the first time, need to add water, then don't need to add water.
在第一次供水前压力罐内水位高于水泵出水管水位。
At the first pre-pressure water pump outlet pipe above the water level in the tank water level.
通过对离心式水泵高效工作区的性能曲线进行二次拟合,分析了离心式水泵机组并联调速运行特性。
The parallel-connection and variable-speed operation characters of the centrifugal pump groups are studied by conics fitting of the character curves in the high efficiency area.
利用冬季农闲季节对水泵进行一次彻底的检修和保养是十分必要的。
Use of the winter slack season for the pump to carry out a thorough overhaul and maintenance is very necessary.
从节能的角度,阐述了变频技术在二次泵变水量系统中的应用,对变频水泵的能耗进行了分析。
From the viewpoint of energy saving, the application of variable frequency technology in the secondary pump system was expounded and the energy consumption of variable frequency pump was analyzed.
风冷式热交换器防腐翅片,制造是采用二次翻边翅片机涨管工艺,无需另加装冷却水泵及水塔,运行可靠,清洗方便,冷量强劲,噪声低,寿命长,操作简单方便。
Don't need another pump and water tower. the machine have the features such as reliable in running, clean easily, strong cooling capacity, low noise, long service life and easy to operate.
两泵水泵运行到2004年12月2日进行第一次拆卸检查。之后将原有零件重新装好继续运转试验。
Two pumps were disassembled for the first check on December 2, 2004, then reassembled to continue the operation test.
指出集中空调冷却水系统为开式系统,一般不适用功率三次方定律,静压头应为冷却塔塔体扬程,并提出了冷却水泵变速时轴功率的计算公式;
Points out that the cubic law of pump power is not valid for the cooling water system of central air conditioning for it is an open system. The static head should be the lift in a cooling tower.
改造后二次循环水泵的节电效率高达35%,节能效果十分显著。
The reformation effect is notable and the rate of power saving is over 35%.
分析结果表明,对于常用的水系统控制方式而言,水泵转速(流量)比与轴功率比的三次幂关系不成立;
The results show that for the common pump control methods, the third power relation between the pump rotate speed(water volume) ratio and the shaft power ratio is not true;
分析结果表明,对于常用的水系统控制方式而言,水泵转速(流量)比与轴功率比的三次幂关系不成立;
The results show that for the common pump control methods, the third power relation between the pump rotate speed(water volume) ratio and the shaft power ratio is not true;
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