bracket bottom

基本解释

You may also want to carry around lubricant, a bottom bracket tool and some spanners .
您可能还需要随身携带的润滑剂，一个中轴工具和一些扳手。
Claimed weights range from 755-780 grams, which includes bottom bracket and puts them firmly in the ballpark of SRAM XX despite the aluminum arms.
声称重量范围从755-780克，其中包括中轴和放入的SRAM二十球场他们牢固尽管铝武器。
Also, in the query [dura ace track bb axle njs] the “bb” is probably referring to a bottom bracket while in the query [software update on bb color id] the “bb” probably means blackberry.
而且，在查询dura ace track bb axle njs时，"bb"指的应该是底架（bottom bracket），而在查询software update on bb color id时，这里的bb说的应该是黑莓手机（blackberry）。

As Pat Garofolo notes, if you are a Michigan resident in the lowest income bracket (bottom 20%) you pay a tax rate of 8.9 percent.
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Consumers in the bottom income bracket spend nearly 4% of their budgets on education, and wealthy Americans chipped in almost 3%.
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