With directional solidification liquid quenching and definite quantity analysis of metallographic, this paper studied the micro solidification characteristic of ZA28.4 alloy.
通过定向凝固液淬试验和金相定量分析,研究了二元ZA2 8.4合金的微观凝固特性。
I will like to know the definite quantity of your annual turnover.
我想知道你们年交易额的具体数字。
The principle of this method is as follows:after a definite quantity of catalase is added to the above mentioned reaction system, in which oxygen will be released.