ball journal bearing 球颈轴承 ; 球颈
ball journal 球轴颈 ; 球颈轴承
double-row ball journal bearing 双列径向球轴承 ; [机] 双列径向滚珠轴承 ; 双列径向滚珠
ball end journal 球形榫头
ball bearing journal detail 滚珠轴承杂志
ball and journal 球形榫头
doule-row ball journal bearing 双列径向滚珠轴承
double-ro ball journal bearing 双列径向球轴承
double-row w ball journal bearing 双列径向滚珠轴承
Results, which Diaz plans to submit to a scientific journal when he's done with follow-up studies, showed that half of the people were terrible at guessing where the ball went.
结果显示一半的人完全猜错了足球将飞向什么方向，另外一半则猜对了。
The hollow, ball-like structures were described as "extraordinary" and "remarkable" in the journal Nature, which published the breakthrough today.
空心的，球样结构，被形容为“特殊”和“卓越”在自然杂志上，它今天出版的突破。
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