楔回 的英文怎麼說
中文拼音 [xiēhuí]-
Defect location, representative defect and its ultrasonic echo characteristics corresponding of tungsten alloy shells had been systematically studied by both vertical wave sensors and transverse wave sensors calibrated after manufacturing
摘要採用縱波直探頭和自磨製經校準的斜楔橫波探頭，對鎢合金殼體部件進行了檢測，並對鎢合金殼體的缺陷定位、典型缺陷及其對應的回波特徵進行了研究。Offers valves, fittings, tubing, reactors, intensifiers, gas boosters, pressure vessels and pumping systems for elevated pressure applications
-生產楔式閘閥，平板閘閥，球閥，截止閥，止回閥，底閥，旋塞閥，蝶閥等各種類型。
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