Synthesis of ethyl iso nicotinate using BTEAC (benzyl triethyl ammonium chloride) as phase transfer catalyst was studied.
以BTEAC(苄基三乙基氯化铵)为相化剂合成了烟酸乙酯。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。
So you might see in a particular company that they are ISO 9,000 certified or something like that, and that's very important because it indicates that they have a certain degree of quality in that organization regarding that area.
因此,您可能会在一家特定公司看到他们通过了 ISO 9, 000 或类似,这非常重要, 因为这表明他们在该组织中在该领域具有一定程度质量。