dumb iron造句

"dumb iron"是什么意思

造句与例句手机版

Up to this point, downhole hardware such as packers, plugs and sliding sleeves have been called " dumb iron ."
In front they were shackled forwards, flat, sloped, and splayed there were no dumb irons, while at the back the springs and frame were also under the axle.
It's difficult to see dumb iron in a sentence. 用dumb iron造句挺难的

相邻词汇

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