pour point的用法和樣例：
例句
- Locate the point of zero stress.
定出應力為零的部位。 - When no entry point is present, this member is zero.
如果沒(méi)有的切入點(diǎn)是目前，這個(gè)成員是零。 - The freezing point of alcohol is much lower than that of water.
酒精的凝固點(diǎn)比水的凝固點(diǎn)低得多。 - Water turns to ice when its temperature drops to freezing point.
水在接近凝固點(diǎn)的時(shí)候變成了冰。
