positive displacement pump是什么意思

用法例句

Finding out its cause and giving timely remedy and help to people in need is of significance to harmony of the society.

研究新时期的社会心理,认真分析转型期社会心理失衡的缘由、影响并给予及时的矫正排解,对于推动经济社会协调健康发展,构建社会主义和谐社会,具有重要的意义。

Objective: to observe the strengthening body resistance and expelling of toxin tablets to anti HIV-1 function in vitro.

目的:观察中药扶正排毒片水提取物的体外抗HIV作用,为寻找新的有效治疗艾滋病的药物提供实验依据。

At the same time,colon herbs(Fuzhengpaidu decoction) dialysis was added to the observe group(20 cases).

方法将40例患者随机分为两组,治疗组(20例)在对照组(20例)一体化治疗基础上加用中药扶正排毒汤行结肠透析治疗,共治疗2个月。