Effect of forging defect of 20CrNiMo cone and jaw to mechanical properties;
20CrNiMo牙轮牙爪锻造缺陷对力学性能的影响
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。
To harden the surface of(a metal.
使（金属的）表面硬化
isothernal transformation case hardening
等温转变表面硬化处理
surface hardening steel
低淬透性钢, 浅淬硬钢, 表面硬化钢
The procedures of heat treatment of steel include hardening,tempering,annealing and case hardening.
钢的热处理工序包括硬化、回火、退火和表面硬化。
Innovative laser processing (surface hardening, surface alloying and cladding)
激光加工(表面硬化、表面合金化以及涂覆)
They let the liquid harden on a glass surface.
并让液体在玻璃表面硬化，
Hardened Seating Surfaces– both disc and body seating surfaces are hard faced for maximum service life.
(4) 硬化的阀座表面–阀瓣和阀体地阀座表面都经过表面硬化，最大限度延长使用寿命。
Improvement on Compound Process of Surface Hardness and Strength Toughness for 5CrMnMo Hot-forging Die
5CrMnMo热锻模表面硬化及基体强韧化复合工艺改进
Case Hardening and Wear Property at High Temperature of Electro-slag Melting and Casting Steel-bonded Carbide;
电渣熔铸钢结硬质合金的表面硬化及其高温耐磨性能研究
The Study of Effects of Gypsum Surface Hardener on Dental Stone;
石膏表面硬化剂对超硬石膏模型机械性能影响的研究
The Study on Mechanism of the Surface Treatment and Its Wear for Bender's Roll Shaft;
弯管机辊轴表面硬化处理机理及磨损性能研究
Structure and Properties of Plasma Phase-change Case Hardening for the Ash Iron Casting;
灰口铸铁等离子表面硬化处理后的组织与性能
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
One that hardens, especially a substance added to varnish or paint to give it a harder surface or finish.
硬化剂一种尤指加入清漆或涂料使之形成更硬的表面的硬化物质
Study on the Surface Aging-hardened High Speed Steel of 25Cr2Mo2v;
25Cr2Mo2V基表面时效硬化高速钢的研究
Study on Micro-arc Oxidation Coloring of Hard Aluminium Alloy Surface
硬铝合金表面微弧氧化着色工艺研究
A material encrusted on a surface.
硬壳表面表面的硬壳状物
Investigating on Chemistry Compositions of the Surface Film of Sodium Silicate Used Sand Hardened by Ester;
酯硬化水玻璃旧砂表面膜的化学构成研究