超音波法液位元元元元元元测定
ultra-sonic method of liquid meaduremert
等离子多元共渗
plasma multicomponent cementation
低温气体多元共渗
low temperature gas multicomponent thermochemical treatment
Gas Multi-element Penetration at Low Temperature
low tem-perature gas multicomponent thermochemical treatment
多元共渗
multi-elements penetrating
multi elements penetrating
multicomponent infiltration
multi-element infiltration
multieIement co-penetration wear
Multi-permeation
Multi-component Permeation
Multicomponent permeation
Combination surface treatment
multicomponent cementation
multicomponent penetrating
Multi-element penetration
Multi-seepage
Multielement co-penetration
multi element alloying
multicomponent thermochemical treatment
multi-element surface alloying
penta-cementation
multicomponent thermochemieal treatment technology
粉末多元共渗
powder multi-component thermo-chemical treatment
离子氮碳氧多元共渗
plasma N-C-O multi-element penetrating
离子多元共渗
ion multicomponent thermochemical treatment
气体多元共渗
gas multi-elements penetrating
Gas Multi-element Penetration
multielement gas penetration
稀土多元共渗
rare earth multi-element penetration
多元多层分析模型
Multivariate multilevel model
多元多层膜
multi-component and multi-layer film
Multi-element-layer Film
Multi-element-layer films
multi-element-ayer film
multi element layer film
多元多金属含氧簇合物
Multicomponent polyoxometalate cluster
多元多相
multielement and multiphase
多元多向抽芯
Multi-direction Cores Drawing by Multi-detail
多元多项式
mutivariate polynomial
multivariable polynomials
multivariate polynomial
polynomial in several indeterminates
polynomial in several elements
multi-varialbe polyomial