常見(jiàn)例句用作名詞 (n.)Three kinds of methods used now by China for vulcanite wear test were introduced briefly, and their merits and defects were also compared.簡(jiǎn)要介紹目前國(guó)內(nèi)採(cǎi)用的硫化橡膠3種磨耗試騐方法，竝將其優(yōu)劣加以對(duì)比。 返回 vulcanite