bottom bracket

基本解釋

You may also want to carry around lubricant, a bottom bracket tool and some spanners .
您可能還需要隨身攜帶的潤滑劑，一個中軸工具和一些扳手。
With the fat tire, the chain had to shift too far outside of the normal bottom bracket to rear wheel alignment, in order to clear the tire width .
隨著脂肪輪胎，鏈條不得不把太多遠遠超出正常的中軸路向后輪，以清除輪胎寬度。
Using the wrong combination will result in a bad connection between crankset and bottom bracket and may lead to a damaged serration of your crankset.
如果硬要這樣配合使用，牙盤和中軸之間結(jié)合的會很糟糕，可能會導致牙盤的花鍵損壞。

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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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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