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凹入管
meaning in English
reentrant pipe
tube, re-entrant
Related Words
凹
椭圆凹
地槽凹
凹痕打凹
窝凹
成凹
球凹
凹坡
凹损
凹出
凹入度
凹入工作面制动器
凹入角
凹入孔口
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