基本解释n.熔點同根派生 meltingpoint相关词英汉例句Results show that reaction velocity, intrinsic viscosity of PET, carbonyl content and meltingpoint increase with the amount of catalyst. 研究結果表明，隨著催化劑用量增加，反應速度提高，PET的特性粘度、羧基含量和熔點均有所提高。meltingpoint更多例句