However, the direct process, 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 former presents a novel cost function based on MCME criteria for the weight vector of antenna array, with direct searching method searching for optical diagonal loading value.
Usually the percentage of sales is a simple and commonly used method is based on the assumption of the main assets, liabilities, income, cost of sales and direct proportion.