所述枢轴安装座允许所述保护性外壳相对于所述枢轴安装座并围绕水平轴aa进行枢转运动。
The pivot mounts allow the pivotal movement of the protective housing relative to the pivot mounts and about horizontal axis AA.
注料管一端与整流阀上的输出管相互衔接，其上适当处设有枢接座，导膜板可枢接于枢接座上；
The appropriate point on a frame is provided with a film level division filling device which comprises a feed pouring tube, a film guide plate, a location seat and a side baffle.
该托架及支撑杆利用该切换座及顶撑座形成可枢转的 结合关系。
The bracket can be pivoted with the supporting rod by using the switching seat and the top bracing seat;
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