Lead-acid and alkaline bettery must not be installed in the same battery room .
酸性蓄电池于碱性蓄电池不应装在同一蓄电池室内。
With p-toluene sulfonic acid used as catalyst and chlorobenzene as organic solvent, the reaction kinetics between phenol and acetal have been studied at room temperature.
本文研究了以对甲苯磺酸为催化剂,氯苯为溶剂,室温附近的条件下,苯酚及对叔丁基酚与甲缩醛反应的动力学。
Therefore, the acid synthesis should be performed at room temperature.
因此,酸性合成宜采用室温条件。
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