阀门排气口密封区域也是平的。

The valve outlet sealing area is also flat.

youdao

平焊法兰不仅节省了空间、减轻了重量，更重要的是确保接头部位不会发生泄漏，具有良好的密封性能。

Flat welding flange not only saves space, reduces weight, more importantly, to ensure that joints do not leak, has good sealing performance.

youdao

济南护栏的合页(或滑撑窗冲突铰链)、执手、框扇间的密封胶条是确保平开护栏网质量最为主要的配件。

Ji 'nan hinge guardrail (or slide window hinge, handle, conflict) between sash and frame sealant is to ensure the quality of the flat open fence as the main accessories.

youdao