hydrothermal and chemical composition process的用法和樣例：
例句
- New supergravity technology of Beijing Chemical Engineeing University is recommended in the project.
當前最受歡迎的制備技術(shù)方法主要有水熱法和超重力技術(shù)法。 - Research results on growth of amethyst crystal by hydrothermal method are presented.
報道了水熱法人工紫色水晶生長(cháng)研究的結果。
