Objective To research the ultrasonic image feature and diagnosis value in infective endocarditis valve excrescence.
目的探讨感染性心内膜炎心脏瓣膜赘生物的超声声像图特点及诊断价值。
Furthermore, linking with practical experience, to explore the common process of ultrasonic cleaning and the rational choice to the technological parameters of ultrasonic cleaning for valve parts.
结合实际经验，探讨了阀类零件超声清洗的一般流程和超声清洗工艺技术参数的合理选择。
The result shows that ultrasonic cleaning technology has good effect and practicability and can be applied to the painting pretreatment of valve bodies and pipe connectors.
结果表明，超声波清洗技术效果可靠、经济实用，可用于阀体及管接头的涂装前处理清洗。
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