Standard: American standard valve, the valve is widely used in the gb water power, petrochemical, environmental protection, medicine industry etc.
标准：美标阀门、国标阀门广泛用于水电力、石化、环保、医药等行业。
American Red Valve's Roller Pinch Valve which has patented sleeve, is widely used in corrosive chemicals, lime, mining slurry with precise, repeatable control.
美国红阀系列中的胶管阀采用专利的弹性套管设计，以其精确的、 重复性高的控制特点，广泛应用在腐蚀性化学品、 石灰、 矿物泥浆等生产领域。
Valve regurgitation was assessed according to American Society of Echocardiography recommendations.
按照美国超声心动描记术学会的建议评价心脏瓣膜返流。
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