Exceptions per interval : The number of times a target invocation resulted in an exception. 每个时间间隔内的异常l:目标调用导致异常的次数。
A new graphite furnace atomic absorption spectrometric method for direct determination of cop - per and zinc in small volume serum was reported. The volume of serum is only 10 uL. 报道了单用重蒸馏水低倍稀释微量血清(10μL)后,直接采用PE4100型原子吸收仪、HGA700型石墨炉,测定血清中铜、锌浓度的新方法。
From 1991 to 1994, we studied the mutagenicity of drinking water in Shanghai by seasons by Ames test. The results indicated that the mean value of mutagenic activity of organic concentration on TA 98 is 162 revertants per liter. 用Ames试验方法对上海市自来水及黄浦江各支流有机致突变性的动态研究结果表明,该市饮水中有机浓集物的水样比活性平均为162Rev/L(就TA98菌株而言)。
The one-stage pump can generate pressures ranging from zero to 20 MPa and flow rate from nanoliter to microliter per minute. 单级电渗泵可以给出0~20MPa范围的输出压力和nL~μL级输出流量。
Using sterile aqueous solution of penicillin with 4 or 9 million units per liter and per hour to deal with polluted seedlings can effectively control the pollution of tissue culture for Populus alba. 采用400或600万单位/L的青霉素无菌水溶液处理细菌污染苗,分别浸泡60min或40min.可有效控制银白杨组织培养细菌污染。幼苗生长和产量的影响。