The removal efficiency of phosphorus in drinking water by modified filter media, especially iron oxide-coated sand has been studied.
试验研究了三类改性滤料及涂铁改性石英砂对饮用水过滤去除微量磷的效果。
AIM: To observe the change of nitric oxide (NO) generation system in the vascular adventitia, media and intima in septic shock rats.
目的：观察败血症休克大鼠主动脉内膜、中膜和外膜一氧化氮合成途径的改变。
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