Taking the steering mechanism of the TN-55 tractor as example, an optimum method is introduced, which is most efficient for this problem.
并以铁牛55型拖拉机转向机构的最优设计为例，介绍了一种求解该类问题很有效的优化方法。
An oxidation method is proposed by physical means to digest water samples. The traditional oxidative digestion of TN and TP has been improved in the national standard methods.
提出了一种采用物理手段进行氧化消解水样的方法，对总氮总磷国标法中传统的氧化消解方法进行了改进。
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