ball hammer 球头锤 ; 圆头锤
ball pein hammer 圆头铁锤 ; 圆头
ball peen hammer 圆头手锤 ; 球喷丸锤 ; 球头缒 ; [机] 圆头锤
ball-peen hammer 圆头锤
ball face hammer 球面锤 ; 圆头锤
Ball pan hammer 球泛锤 ; 球板斧
He set a very big iron ball and a big hammer on the stage.
他在讲台上放置了一个很大很大的铁球和一把铁锤。
If I throw up a hammer, then the center of mass and only the center of mass will just go along a perfect parabola as if it were just a tennis ball.
我若是抛铁锤，那么质量重心，也是唯一的质量重心，会沿完美抛物线运动，就像一颗网球。
He picked up a ball-peen hammer, leaned on the passenger-side fender, and tapped twice on the EGR valve.
他拿起一个榔头，在右侧挡泥板前弯下身，轻轻敲了两下废气循环阀。
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