flange joint
凸缘接头
法兰接头
法兰连接
凸缘接合
法兰结合面
凸缘接驳位
凸绿接合
柔性石墨
flange joint surface of outer casing
G-D-P joint construction newmodel
12 lead the joint synchronized electrocardiogram
3D joint seismic exploration of surface and boreho
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500 kV cable intermediate joint
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a joint relief operation
a joint section with filling and cutting