已有150多个国家通过了《烟草控制框架公约》(Framework Convention on To bacco Control)。该公约要求缔约国采取一系列反吸烟措施。
Over 150 countries have already ratified the Framework Convention on Tobacco Control, which requires countries to take a range of anti-smoking measures.
通过误差矩阵和模具的工作特性函数反求输入控制量是加工高精度的自由曲面光学镜所面临的难题。
It is a difficult problem to solve the inputted data when the matrix of error data and the working characteristics of the tool are known in precision machining.
通过该控制器在低损耗高频反激电源中的应用进一步证明了它的可行性和实用性。
The feasibility and practicality of the controller are further verified in the low loss high frequency feedback power supply.
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