单词：rocking arm pump
rocking arm pump的用法和样例：
例句
- Centrifugal pumps are the most common pump power.离心泵是最常见的动力式泵。
- The Company produced all kinds of vehicles pump-pump, pump Tuobeng tubes, and other parts, construction machinery and equipment leasing.本公司生产各种车式泵泵管，拖泵泵管，及其他零部件，并可租赁建筑机械设备。
单词：rocking arm pump 相关文章
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英语每日一词
He was going to ride his bike down to South Ferry. He squeezed the tires. They were soft. They needed air. I should buy a pump one of these days, he thought. He rode his bike to K-Mart on 34th Street. He walked the bike inside the store. He went to t
英文短篇故事（纽约）
今天要学的一个词是：pump。pump，Pump一般是指泵，或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采，《洛杉矶时报》的标题说：Oilfield Closure t
英语单词荟萃
Kenyan Farmers Going Green As scientists and political leaders around the world grapple with the issue of climate change, many farmers are looking at technologies that rely on renewable energy for their operations. Farmers in Kenya are now using two
VOA标准英语2011年(十二月)
今天要学的一个词是：pump。pump，Pump一般是指泵，或抽水机。可是今天讲的pump是指汽车加油站的泵。英国石油公司宣布停止在阿拉斯加的石油开采，《洛杉矶时报》的标题说：Oilfield Closure t
学个词