In the same time, a calculating formula of welding flat cover special for hydraulictest is deduced by setting certain safety coefficient of hydraulictest.
同时通过对试验压力取一定安全系数，推导出液压试验专用焊接平盖的计算公式。
2
I also equipped with a special charge of the hydraulictest-proofing machines and staff, opened a development from.
我公司还配备了专门负责试模打样的油压机和人员，开创了从开发。
3
This has not only expanded the hydraulictest stand to the edge, but also the improved control system flexible.