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1. | 螺距比 石油词汇英语翻译(P) ... pitch radius 节圆半径 pitch ratio 螺距比 pitch wheel 相互啮合的齿轮 ... www.zftrans.com | 2. | 节圆直径比 船舶专业词典.xls ... 146 管路图 piping plan 147 节圆直径比 pitch ratio 150 母型船 parent ship ... www.360doc.com | 3. | 管距比 化工和机械英文字典 - -... ... 管距 tube pitch 管距比 pitch ratio 管壳式换热器 shell-and-tube heat exchanger ... bbs.myptfe.com |
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