以正二十烷 、 聚乙烯和乙丙橡胶等为原料经熔融挤出,制成正二十烷含量10%~65%的共混切粒. The blended chips containing 10 % ~65 % of n - Eicosane were fabricated with n - Eicosane, polyethylene ( PE ) and ethylene - propylene copolymer.
玻璃加热后拉成了一根细管.The glass was heated and drawn out into a thin tube.血管是供血液流通的细管.Blood vessels are the narrow tubes through which your blood flows.热水受压流经这些细管, 使整个房间保持温暖.The hot water is pumped through these narrow pipes, so ...