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
Gas Multi-element Penetration at Low Temperature
low temperature gas multicomponent thermochemical treatment
low tem-perature gas multicomponent thermochemical treatment
多元共渗
multi-elements penetrating
multicomponent thermochemieal treatment technology
penta-cementation
multi-element surface alloying
multicomponent thermochemical treatment
multi element alloying
Multielement co-penetration
Multi-seepage
Multi-element penetration
multicomponent penetrating
multicomponent cementation
Combination surface treatment
Multicomponent permeation
Multi-component Permeation
Multi-permeation
multieIement co-penetration wear
multi-element infiltration
multicomponent infiltration
multi elements penetrating
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
multielement gas penetration
Gas Multi-element 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-element-layer Film
Multi-element-layer films
multi-element-ayer film
multi element layer film
multi-component and multi-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