addition n. 1.附加,追加;附加物。 2.【数学】加法,加算。 3.【法律】(加在姓名后的)头衔,官衔;称号。 4.(建筑物的)附加部分。 have an addition (to one's family) 生孩子,添人口。 in addition 加之,又,另外。 in addition to 加之,除…外又。
product n. 1.产物,产品;制品;产量;出产。 2.结果,成果。 3.创作,作品。 4.【化学】生成物;【数学】积,乘积。 natural products 天然产物。 agricultural products 农产品。 residual product 副产物。 40 is the product of 5 and 8. 40是5和8的积。
Toluenesulphinyl anion from the diester of n - tosyl alanine with 2 , 6 - bis hydroxylmethyl pyridine and its nucleophilic addition product with 2 , 6 - bis chloromethyl pyridine 及对甲苯亚磺酰离子和2 , 6 -二甲基吡啶反应的研究
In addition products that require relabelling following parallel distribution are expected to display the original manufacturer ' s batch number 另外,需要对随后平行销售的产品进行重新标签时,要求显示原来的生产商批号。
Formation of the p - toluenesulphinyl anion from the diester of n - tosyl alanine with 2 , 6 - bis hydroxylmethyl pyridine and its nucleophilic addition product with 2 , 6 - bis chloromethyl pyridine formation of the N -对甲苯磺酰丙氨酰- 2 , 6 -二羟甲基吡啶双酯的消除机制