However, the directprocess, cracking method and hydrogenation of chlorosilanes were valuable because of less cost, high yield and convenience of continuous manufacturing.
而直接法、裂解法和还原法因其成本低廉，产率高，便于连续化生产，具有工业实用价值。
2
The control logic relation of all the station equipments can be divided into two stages. The bottom is a directprocess control stage and the top is a compute supervisory control stage.
全站设备的控制逻辑关系分为上下两级，下级为直接过程控制级，上级为集中监督控制级。
3
He has direct experience of the process of privatization.