ประโยคภาษาจีน : 中文句子 |
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mù qián 目前 de 的 hé chéng 合成 fāng fǎ 方法 cháng yòng 常用 róng jì 溶剂 wèi 为 yì wù chún 异戊醇 děng 等 cún zài 存在 qì wèi 气味 dà 大 shēng wù 生物 jiàng jiě 降解 kùn nan 困难 huán jìng wū rǎn 环境污染 jiào dà 较大 |
The existing synthesis method generally uses isoamyl alcohol and the like as solvent, thus having the problems of strong smell, difficult biodegradation and higher environmental pollution. |