Lithium has some chemical behavior that resembles the chemistry of Mg.锂的某些化学行为类似于Mg的.Obviously the force of gravity Mg is acting vertically downward.显然重力的Mg作用垂直向下.More diphenylthiocarbazone should be used to estimate bar...
The union issued an order instructing its members not to work overtime.工会发出指示,不让会员超时工作.The editor at once sent the journalist a telegram instructing him to find out the exact number of steps and the height of the wall.编辑...
The patient rates the therapies on a scale of zero to ten.患者按十分制给这些治疗方法打分。That night the mercury fell to thirty degrees below zero.那天晚上温度计显示气温降到了零下30度。This new ministry was being created with zero assets and zero liabili...
再将硝酸纤维素滤膜置于含碱的湿滤纸上, 碱的作用是使DNA变性.The nitrocellulose filters are then placed on wet filter paper containing alkali, which denatures the DNA.目的: 测定知柏地黄丸中盐酸小檗碱的含量.Objective : To analyse the content of berberine hydrochloride...