bearing pressure造句怎麼寫

In the bearing pressure water body safe mining coal is relates the project question which the mine pit production safety and may continue to develop.

Meanwhile has carried on the experimental analysis and the explanation to the hot melt welded pipe's bearing pressure performance.

The smoke of steel ball bearing pressure such as depth limit ring precision sure.

It is characteristics of poor groutability, difficult construction, rising cost and poor quality to grout under the condition of bearing pressure water.