目的探讨我国二甲基甲酰胺 ( DMF ) 的生物接触限值 ( BEI ).Objective To explore the biological exposure indices ( BEI ) of dimethylformamide ( DMF ) in China.研究表明,该反应器可有效降解苯甲酰胺.The results show that the new type reactor could degrade benzamid...
By about 6 weeks of age, most babies begin to show something approximating a day/night sleeping pattern.到6个星期大时，大多数婴儿开始表现出近似于日夜分明的睡觉模式。Something approximating to a fair outcome will be ensured.保证会有大致公正的结果。In the finite e...
to finesse a deal略施小计达成一桩交易It was a disappointing performance which lacked finesse.那场演出缺乏技巧,令人失望.Playing bridge , we make some probability estimate before attempting a finesse.打桥牌时, 在采取某种策略之前,总要先做一些概率估计....
然而, 这些发现物只是颌骨的部位和一些零散的牙齿.However, those finds were limited to jaw parts and loose teeth.结果保守治疗只能控制放射性颌骨骨坏死的病情.Results Conservative treatment can control the progress of the diseases.小颏畸形是一种常见的颌骨发育性畸形.The small chin defor...