单词：hydrogenation of coal
hydrogenation of coal的用法和样例：
例句
- Zinc displaces the hydrogen of dilute acids.锌置换了稀酸中的氢。
- In cases of doubt the changes following hydrogenation, bromination or other chemical attack upon the double bond can be studied.在有疑问时可以研究双键的氢化，溴化或其他化学反应所引起的变化。
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