The pump casing, impeller, motor housing and stationary base elbow shall be manufactured of close-grained cast iron, ASTM A48, Class 30.

泵壳，叶轮，电机壳和固定底座弯头都应该采用符合美国材料试验协会ASTM A48级别30致密铸铁制造。

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The base shall be of adequate height to provide suitable clearance between the pump suction elbow and the mounting floor and of sufficient strength to accept all forces imposed by the pump unit.

这个基座应该具有适当的高度，使得泵吸入弯头与安装地面具有适当的间隙，并有足够的强度承受泵设备所产生的所有压力。

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The company's production base in China's Rural Pipe Elbow - Cangzhou.

本公司的生产基地在中国弯头管件之乡-沧州。

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The main problem is obvious: Speedy outfielder Brett Gardner has been on the disabled list for all of May with elbow trouble, depriving the lineup of an on-base threat and a consistent 50-steal man who puts pressure on pitchers and gives the offense a different look.

WSJ: The Yankees Shalt Not Steal