The study of tribological properties of carbon/carbon composites with different surface hardness;
炭/炭刹车副表面硬度对摩擦磨损性能的影响
Influence of surface hardener on surface hardness and abrasion resistance of dental stone;
石膏表面硬化剂对超硬石膏模型表面硬度和抗磨损性的影响
Influence of Electric Field on Material Surface Hardness;
电场对材料表面硬度的影响
Application of repair welding on surface hardening of steel body PDC bit;
堆焊技术在钢体PDC钻头表面硬化中的应用
89-1 coating for laser surface hardening;
激光表面硬化预涂层用89-1涂料的研究
The surface hardening of 40Cr steel was performed on a surface grinder by transverse feed grinding;the changing trends of microstructure and wear behavior of surface hardened layer were researched.
在平面磨床上采用横向进给磨削方式对40Cr钢进行表面硬化处理,研究了磨削表面硬化层组织与磨损性能的变化趋势。
a hard surface that won't scuff
不会磨损的坚硬表面
You can probably hear a fake coin just by dropping it on a hard surface.
你能够通过听硬币落在坚硬表面上的声音来辨别硬币。
Hardfaced seating surfaces, large diameter hinge pins, and corrosion resistant bearing surfaces help lengthen operating life in tough surfaces.
经过硬面处理的阀座表面，大直径铰链销，以及防腐蚀轴承表面，有助于延长坚硬表面的使用寿命。
"To make an abrupt, sharp sound, as in the collision of two hard surfaces."
发出短促、尖锐的声音,如两个坚硬表面碰撞时的声音
keeping us from getting hurt every time we grip the hard surface of a bottle or a baseball bat.
让我们每次抓到瓶罐或棒球棒的坚硬表面时不会受到伤害。
A machine that bores through hard surfaces, used especially for tunneling through rock.
凿岩机一种钻孔于坚硬表面的机器，尤用作凿穿岩石的隧道
used to form a hard coating on a porous surface.
用在多孔表面形成坚硬的涂层。
To treat(a metal surface)with cyanide to produce a hard surface.
氰化用氰化物处理（金属表面）使其表面坚硬
By craftsmen / artisan who prefer for the sharpening hard surface.
主要是为了削尖坚硬的表面，工艺师和工匠都喜欢采用的工艺工具。
The sound of a sharp tap on a hard surface;a rap.
敲击声在坚硬的表面上的急促敲击的声音；敲击声
Make sure you use a hard surface and wait for the yolk to settle.
记得要找坚硬材质的表面，要等到蛋黄沉下来再立。
The result is a container with a hard surface that will last for many years.
这样可以使容器有一个坚硬的表面，并且保存很多年。
Lacquer becomes extremely hard But not Brittle on exposure to air and takes a high polish.
漆固化后表面非常坚硬暴露在空气中也不易碎,并可高度磨光。
A figure or design carved into or beneath the surface of hard metal or stone.
凹雕；阴文刻在坚硬的金属或石头表面上的图形或图案
crinoid with delicate radiating arms and a stalked body attached to a hard surface.
有精致的放射状臂肢的海百合，其杆状的身体附着在坚硬的表面。
Diamonds, the hardest natural stone, and rubies and sapphires, the second hardest, are actually rather hard to deface.
钻石（最坚硬的天然石）和次硬的红、蓝宝石，要刮伤其表面其实相当困难。
First, they shine a flashlight or a laser along the clean, solid surfaces on which a print may have been left by the perspiration（排汗） and oil on a fingertip.
首先，他们用一束强光或激光照在干净坚硬的表面上，这些表面上可能留下了指纹的汗渍或油渍。
A material encrusted on a surface.
硬壳表面表面的硬壳状物