在对闸瓦式制动器进行动力学分析的基础上，论述了它的设计方法和步骤，并给出了机械效益的计算公式和设计曲线图。
Based on dynamics analysis and brake shoe type arrester, its design method and steps are discussed in this paper. Calculation formula of mechanical benefit and design is introduced.
中国湿地面积的减少、功能和效益的下降昭示着中国保护湿地资源的行动迫在眉睫。
As a result, it caused the diminishment of natural wetland, which warns China to take a quick step to protect the wetland resource.
该设备可追查所有倾物入海行动。透过记录船只的吃水深度和位置，当局便能够以更符合经济效益的方法，追查非法倾物入海活动。
This device tracks all marine dumping operations by recording the position and draught of the vessel, so that the authorities can trace any illegal dumping in a cost-effective manner.
在对闸瓦式制动器进行动力学分析的基础上，论述了它的设计方法和步骤，并给出了机械效益的计算公式和设计曲线图。
Based on dynamics analysis and brake shoe type arrester, its design method and steps are discussed in this paper.
在对闸瓦式制动器进行动力学分析的基础上，论述了它的设计方法和步骤，并给出了机械效益的计算公式和设计曲线图。
Based on dynamics analysis and brake shoe type arrester, its design method and steps are discussed in this paper.
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