在常温下采用回归正交法对间歇曝气活性污泥系统(IAS)处理城市污水进行了研究。
A research on the Intermittent Aerotion System (IAS) for treating sewage was done by regressive orthogonal method at normal atmospheric temperature.
芴的提取精制过程是先间歇蒸馏洗油馏份或蒽油馏份切取芴主馏份，再采用冷却结晶法或溶剂结晶法精制芴主馏份得到芴。
The extraction and refining process includes distillating washing oil or anthracene oil to get fluorene distillate, then crystallizing the fluorene distillate to get fluorene using cooling or solvent.
试验采用间歇式密闭室通气法，测定了冬小麦生长季氨挥发的损失量。
This paper aims to study the ammonia volatilization use continuous air flow enclosure method in wheat season.
应用推荐