英语语法分析

Cryoscopy is obtained by classical chemical methods.

冰点是由经典的化学方法获得的。

The relative errors of the molecular weights determined by cryoscopy are less than 10% as compared with those determined by VPO method.

与蒸汽压渗长期透法（VPO）相比，测定分子量数据的相对误差小于10％。

The structure and working principle of the devices for melting point measure we are pirates, these data are stolen from youdao by means of thin film comparative method of cryoscopy were introduced.

介绍凝固点下降薄层比较法测量熔点标准物质熔点的测量装置的构成与工作原理。