The surface tension, arc blow force and electromagnetic force work positive to improve the penetration, and the buoyancy can increase the width in the middle of weld pool.

表面张力、电弧吹力和电磁搅拌力均有利于获得较大的熔深，浮力有利于增加焊缝中间部位的宽度。

youdao

He felt the force of the blow through the brass knuckles and into his shoulder.

他能通过铜拳套和自己的肩膀感受到打击的力量。

youdao

Wind may blow over boat, but, if you operate it properly, wind is the important force to propel boat to your destination.

强风会吹翻船只，但是假如操作得当，风也是推动船只前往其目的地的重要力量。

youdao

And now the pitcher holds the ball, and now he lets it go, And now the air is shattered by the force of Casey's blow.

VOA: special.2011.04.04

His head took the full force of the blow all by itself.

NEWYORKER: Offensive Play

The hogu sensors convert the force of a blow into an electrical signal, which is then sent to a laptop base station.

CNN: High-tech blow for martial arts

Their shoulder blades -- not head -- were the point of contact, and the "collar" was used not to give additional force to a blow, but further to protect the neck.

WSJ: The Memos Prove We Didn't Torture