| 释义 |
1 ?滞流 ... 试金石 touchstone 滞流 tough flow 韧性 toughness ...
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Super Tough, weatherable, easy flow and processing friendly, black polyamide 66 resin for injection molding. It offers the best resistance to outdoor exposure. 超强硬，抗寒耐热、易流动和加工友好、黑尼龙66树脂为注塑成型。它提供了最好的抗室外曝露。 - 2
Because of the complexity of turbulent flow, it is a tough issue to determine its friction factor. 鉴于紊流运动的复杂性，其沿程阻力系数确定起来较为困难。 - 3
Oh, mother, trickling flow of the river is always flowing your long hair, a long long mountain is the backbone of your tough. 哦，祖国，涓涓流贯的河川是你飘逸的长发，绵亘悠久长的山岳是你硬朗的脊梁。
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