left slew solenoid valve defect 左回转电磁阀故障
valve e defect 瓣膜缺损
extended defect slide valve rod 伸长滑阀杆
repair defect of bicuspid valve 二尖瓣缺损修补术
The main reasons were due to the defect in the design of safety valve secondary circuit and the overlap of the service rating and the setting for safety valve popping and reseating.
主要原因是锅炉安全阀二次保护回路设计有缺陷，再加上安全阀起跳和回座的整定值与运行额定值相重叠造成的。
The numerical simulation of temperature field and shrinkage defect prediction for a valve casting, which was involved in 4 kinds of casting proces.
对采用4种不同铸造工艺方案的阀体铸件凝固过程进行了数值模拟及缺陷预测，获得了与试验相一致的模拟结果。
An automatic brake valve surface defect detection system based on the image processing technology has been developed.
开发了一种基于图像处理技术的制动阀表面缺陷自动检测系统。
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