lower ball cover 下轴承盖
upper ball cover 上轴承盖
ball cover detail 滚珠轴承盖
rubber golf ball cover treater 橡胶高尔夫球覆盖处理者
Washer-ball cover 玻璃盖处的介子
ball case cover 滚珠轴承压盖
ball joint cover 球节盖
A producing method of ball for ball game including a ball cover and a bladder is disclosed.
本发明提供一种包括球皮和球胆的球技用球的制法。
You should curl up (蜷缩) into a ball and cover your head and neck with your hands.
你应该蜷缩起来,用手护住头和脖子。
The child was asked to go to the corner of the room and to cover his or her eyes before coming back and guessing which of two large boxes contained a hidden ball.
这个小孩会被要求走到房间的一角,遮住他或她的眼睛,然后回来猜一下两个大盒子中的哪个包含了一个隐藏的球。
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