The inner side surface of the ball sleeve is contained outside the joint head in an insulating way to form a cardan joint.
球套内侧面吻合包含于关 节球面之外，形成万向节。
The second connecting unit is provided on the inner surface of a bent portion formed along the side of the intake grille and has a hole to receive the hinge shaft.
第二连接单元设置在沿吸入格栅侧面形成的弯曲部分的内表面上，并具有接纳铰轴的孔。
The inner side of the folded planes continues provides a continuous surface from floor to wall and ceiling.
内部连续的折叠面创造出一个从地板到墙体再到天花板的连续整体。
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