掌握每个单元发音法的拼读。
掌握和运用经济法知识，是对经济管理人员的基本要求。
It is essential to master and apply the knowledge of Economic Law for the managers.
了解和掌握SBR 法计算机自动控制系统的构造、原理、和特征。
Understand and grasp configuration, theory and feature of SBR Computer Control System.
第二类换元法是一种既重要又不易掌握的积分方法。
The second method of transformation is an important but not-easy-to-master calculus method.
第二类换元法是一种既重要又不易掌握的积分方法。
The second method of transformation is an important but not-easy-to-master calculus method.
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