常見例句The spectrum showed that BSL was composed mainly of syringl (S), guaiacyl(G) and p-hydroxylphengl (H) units, and the ratio of three uncondensed group (S:G:H)was 2. 圖譜分析表明,蔗渣堿木素主要由紫丁香基,愈創(chuàng)木基和對(duì)羥苯基三種丙烷結(jié)構(gòu)單元組成,其中未績合的紫丁香基、愈創(chuàng)木基和對(duì)羥羊基含量比為2。uncondensed spark 非電容火花 返回 uncondensed