3+1造句怎么写
- 造句
- 关注:1.32W次
并建议:采用国产催化剂时宜选用“3+2”五段转化;采用进口催化剂时可选用“3+1”四段转化。
It suggests that it is better to use domestic catalyst for "3+2" conversion and the imported catalyst for "3+1" conversion.
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造句
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