1、 Also, the preparation process ofm - methoxy aniline from m - aminophenol was improved.
同时改进了以间氨基苯酚为原料制备间甲氧基苯胺的工艺.
来源:互联网
2、 R " is a replaceable function , e . g . acetoxy, methoxy, their acyloxy and alkoxy homologs or halo.
R ” 是取化基,如乙氧基 、 甲氧基及它们的环氧和烷氧同系物或卤基.
来源:辞典例句
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