一些结构由两件式阀盖和轭架组成。

Some designs incorporate a two - piece bonnet and yoke.

youdao

坚固耐用的不锈钢闸板，经久耐用的填料，不锈钢阀杆，耐腐蚀轭架轴套，重型坚固的上部结构。

Rugged stainless steel gate, long-life packing, stainless steel stem, corrosion resistant yoke sleeve, and heavy duty superstructure.

youdao

坚固耐用的不锈钢闸板，经久耐用的填料，不锈钢阀杆，耐腐蚀轭架轴套，重型坚固的上部结构。

Rugged stainless steel gate, long-life packing, stainless steel stem, corrosion resistant yoke sleeve, and heavy duty superstructure.

youdao