additional strength短语¹⁴⁴⁹⁷²⁺² 基本例句 增加强度 Additional strength is being derived from computation of chemical shifts in solids, using a code that takes account of the spatial repetition inherent in crystalline materials. 考虑晶体内在的空间重复性，对固态物质化学位移的计算可得到更可靠的信息。 www.bbs.chinanmr.cn