ประโยคภาษาจีน : 中文句子 |
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cǎi yòng 采用 cháng guī 常规 huáng 磺 huà 化 gōng yì 工艺 huáng 磺 huà 化 zhòng wán jī běn 重烷基苯 huáng 磺 huà 化 lǜ 率 yì bān 一般 dī yú 低于 qiě 且 chǎn pǐn 产品 nài 耐 jiǎn xìng 碱性 jiào chā 较差 |
The sulfonation yield of HAB, however, is generally lower than 70 % with ordinary sulfonation technology, and the tolerance to alkali of HABS is not satisfactory. |