本文论述了小型牵引垄作覆膜机设计的有关问题。其中，方案确定、机器配置、整形器、随垄装置及起落机构的设计，反映了该机的主要特点。
This article deals with the design of miniature trailing ridger mulcher, of which the configuration of machine, the design of ridger former, follow-up ridger and lifter were the main design features.
着重推导了起落架机构的设计计算公式，并讨论了机构运动中杆件的碰撞检测问题。
The formulae for the kinematic synthesis of the above landing gear are given in detail, and the collision detection of its certain links is also briefly discussed.
对以铰链连接为主的某型飞机前起落架收放机构的磨损可靠性进行了全面的计算。
The wear reliability on extending-retracting mechanism of nose landing gear of a military aircraft is analysesed and calculated.
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