An improved and optimum process for preparing 2-Amylanthraquinone by re-acting t-amylbenzene with phthalic anhydride, involving Friedel-Crafts acylation (yield 80. 2%) and cyclization(yield 81.4%).
以叔戊苯和笨酐为原料,通过酰基化和关环合成了2—戊基蒽醌,改进和优化了各步合成工艺条件,酰化收率80.2%,关环产品收率81.4%。
Yet by re-establishing a culture of accountability and discipline Mr Gulliver would not be betraying the bank's traditions but acting entirely in accordance with them.
格列佛先生可能不会违背银行的传统,他会全面按照这些传统行动。
But health ministries, acting alone, cannot re-engineer societies in ways that protect entire populations from the well-known and easily modified risks that lead to these diseases.
然而,卫生部门单凭一己之力无法重塑社会,保护全民免受广为人知并可轻易改变的致病危险带来的侵扰。
High thermal denaturating temperature can not be obtained with RE, or vegetable tannins acting on collagen protein.
稀土或植物单宁与胶原作用都不能使胶原有较高的热变性温度。
Hallyu star SSH announced the re-start of his acting activities.
韩流明星宋承宪宣言表演活动再开始。
In general, the whole acting zone of a linear CAM may be divided into: 1. The impact zone, in which the first impact and several re-impacts occur.
一般说来,直线三角的整个作用区可以分为:1。冲击区其中存在有第一次冲击和几次再冲击。
Notice when they 're acting differently.
注意他们的异常举动。
Glamorous performance can't live without re-creation, the musical value of the work need to be demonstrated through appropriate acting.
作品演奏本身离不开“二度创作”这个过程,只有通过恰如其分的演绎才能真正体现作品的音乐价值。