It has been mentioned before that not all requests are subject to load-balancing.
前面提到过，并非所有请求都适用于负载平衡。
If all goes well, belts should not be subject to this load.
如果一切顺利，皮带不应该受这种负载。
Single thrust ball bearing can be subject to the axial load from single direction.
单向推力球轴承可承受单一方向的轴向载荷。
Single thrust ball bearing can be subject to the axial load from single direction.
单向推力球轴承可承受单一方向的轴向载荷。
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