Combining experimental solution and CFD analyses, a method to appraise noise of poppet valve was studied.
结合试验结果和计算流体动力学的解析结果，研究液压锥阀的噪声评价方法。
This thesis provides original quality control system and makes it true based on study of SPC chart combining with valve manufacturer 'erp project.
本文结合阀门生产企业的ERP项目，在对SPC控制图的研究的基础上，给出了质量控制系统并加以实现。
By using electronic expansion valve, combining with novel control methods, optimum control of refrigeration system and high energy-saving effects can be realized.
配合新型控制方式，可以实现制冷系统的优化控制和大幅度地提高节能效果。
Results Simple aortic valve calcification was found in 93 cases(56.0%); simple mitral calcification, 18 cases(10.8%); aortic valve calcification combining mitral calcification, 55 cases, (33.1%);
结果单纯主动脉瓣膜钙化者93例（56.0%），单纯二尖瓣钙化18例（10.8%），主动脉瓣和二尖瓣联合钙化为55例（33.1%）；
The company insists on the technical route of combining introduction absorption and independent development, now it is the largest domestic production base of fluoroplastic pump and valve.
公司坚持走引进吸收与自主开发相结合的技术道路，目前为国内最大的氟塑料泵阀生产基地。
The company insists on the technical route of combining introduction absorption and independent development, now it is the largest domestic production base of fluoroplastic pump and valve.
公司坚持走引进吸收与自主开发相结合的技术道路，目前为国内最大的氟塑料泵阀生产基地。
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