The average toilet break produces around 600ml of urine .
人们平均每次上厕所能产生约600毫升的尿液。
The reduction kinetics of ludwigite ores was studied by thermogravimetry at 600-1000 @ with a hydrogen flowrate of 600ml / min.
用热重法研究了硼铁矿石氢气还原动力学。氢气流量600ml/min，温度600～1000℃。
600ml