针入度指数 penetration index
针入度指数法 penetration index method
沥青针入度指数 penetration index of bitumen
针入数
Needle penetration
以上为机器翻译结果，长、整句建议使用 人工翻译 。
试验结果表明梳理机上工作辊与锡林速比、针梳道数、喂入根数和牵伸倍数对涤纶条中的纤维长度、毛粒含量有组合影响。
The experimental showed that fibers length and neps were influenced by speed ratio between cylinder and worker, gilling number as well as combination of sliver feed weight and gilling draft.
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