The triggering mechanism for the salt mud tectonics was gravitational gliding accompanying regional extension 重力滑動作用表現為觸發鹽泥層的聚集隆升和引起薄皮滑脫作用。
Automatic steam stop - check angle - globe valves are best on medium - pressure steam service where the sliding action of the semi - plug disc assembly permits the valve to serve as a shut - off valve , a throttling valve and a check valve 自動蒸汽截止止回閥和角式截止閥適用于中壓蒸汽管道系統,此時半插入式閥瓣的滑動作用使得閥門能夠起到關閉閥、節流閥和止回閥的作用。