In this paper, the influence of diamond tool sharpness on machined surface quality was studied from the viewpoints of the cutting force, surface roughness and residual stress.

本文从切削力、表面粗糙度、表面残余应力几个方面，研究了金刚石刀具刃口修锐度对切削表面质量的影响。

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This essay aims at discussing the aesthetic perception of brush stroke in the oil painting based on such various aspects as dynamic force, surface layer, rhyme, skill as well as spirit.

本文主要从笔触的力度、表层、节奏、技巧、精神论述了笔触在绘画作品中的美感。

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For example, we know that if a body is near the surface of the Earth, the force of gravity of that object seems to be m times g, where g is 9.8.

例如,我们知道,如果在地球表面有一个物体,该物体受到的重力大小为 m 与 g 的乘积,g 等于 9.8

耶鲁公开课 - 基础物理课程节选

The process involves drilling a bore hole and using explosives or water to force gas to the surface.

BBC: Keynsham residents against natural gas extraction plans

When a player gets hit, the Kevlar fibers stretch and spread the force evenly across the surface, suppressing the shock.

FORBES: Meet The Bullet-Resistant Sports Clothes Breaking Your Fall

Coupled with a spacesuit, X1 could provide additional force when needed during surface exploration, providing even more bang for its small bulk.

ENGADGET: NASA and IHMC building X1 exoskeleton to give us a lift, keep us fit in space and on Earth