常見例句Montan wax is a mixture of wax, resin and asphalten, in Which resin shows harmful effect on the quality of montan wax,Thus it must be removed in advance. 褐煤蠟主要是由蠟質(zhì)、樹脂和地瀝青三種組分所組成的混郃物,其中樹脂對産品質(zhì)量影響較大,常需預(yù)先加以除去。 返回 asphalten