某飞机起落架缓冲支柱固定螺栓长期使用后断裂。
One fixation bolt of undercarriage support in aircraft fractured after servicing a long time.
无人机起落架设计所涉及的相关构件、机构通常包括：缓冲支柱、机轮、轮胎、刹车防滑系统、操纵减摆机构、收放机构等。
The relevant organizations involved usually include absorbing system, undercarriage tyre, brake slip resistance system, landing gear shimmy dampers, retracting-lowering system, etc.
仓储是商品流通的重要环节之一，也物流活动的重要支柱，对于整个物流系统来说既有缓冲与调节的功能，也有增值的作用。
It is an important element of commodity circulation, but also an important pillar of the logistics activities. Warehousing to the entire logistics system plays both the buffer and value-added role.
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