1) johansen multivariate cointegration
多元共积
2) multi-element penetration
多元共渗
1.
Study on blowout preventer material by multi-element penetration;
防喷器材料多元共渗后的研究
2.
The experiment results show that after multi-element penetration,the hardness,abrasive resistance and corrosion resistance have been greatly improved with new compounds forming.
采用粉末包埋法对黄铜进行单元渗铝和铝、锰、铁多元共渗,对渗后试样分别进行硬度、抗腐蚀性能和摩擦磨损性能的测试。
3.
Corrosion performance of 20 steel was improved by low temperature gas multi-element penetration technique.
采用低温气体多元共渗技术在20钢表面同时渗入碳、氮、氧三种元素,利用X射线衍射仪(XRD)测定了渗层的相组成;另外测试了渗层在浓度为1。
3) multicomponent thermochemical treatment
多元共渗
1.
Experimental research on N-C-B-RE multicomponent thermochemical treatment;
低温气体氮-碳-硼-稀土多元共渗的研究
4) Multicomponent permeation
多元共渗
1.
Carbon,nitrogen,oxygen were infiltrated into the 20 steel by low temperature gas multicomponent permeation technique,and its performance was studied.
采用低温气体多元共渗技术在20钢表面同时渗入C、N、O3种元素,在材料表面形成了厚且致密均匀的渗层。
2.
The microhardness of nodular cast iron and grey cast iron treated by the technology of low temperature gas multicomponent permeation was studied.
采用低温气体多元共渗处理工艺,对经处理的球墨铸铁和灰口铸铁的显微硬度进行研究。
3.
The technology of low temperature gas multicomponent permeation for nodular cast iron was studied.
对球墨铸铁的低温气体多元共渗技术进行了研究。
5) multi-elements penetrating
多元共渗
1.
This paper study on the properties of 45 steel by the low temperature gas N-C-O multi-elements penetrating which is a new developed techniques.
利用一种新型智能化低温气体多元共渗技术在45钢表面进行低温气体C、N、O多元共渗,以期提高其表面硬度。
2.
The effect of multi-elements penetrating is better than three-element penetrating or nitrogen treatment and the scientific using mechanism is also important to mould life.
从组织细化处理、热处理工艺、多元共渗处理及模具使用机制对模具使用寿命的影响作了深入分析。
3.
The properties of H13 steel treated by C-N-O-S-B multi-elements penetrating were studied in this paper.
结果表明 ,由于多元共渗后渗层存在多种化合物 ,从而使H13钢的热稳定性、热疲劳抗力、耐磨性等得到明显改善 ,上述性能指标均比单一渗氮层高得
补充资料：多元共渗
分子式：
CAS号：
性质：渗镀品种之一。欲渗入的元素为两种、三种或多种元素。经热扩散渗镀后获得共渗层。有铬铝、铝硅、铬硼、硼铝、铬铝硼等多种共渗工艺。多元共渗不但充分发挥单一元素的各自优点，弥补其缺点，而且还可以赋予金属材料表面以新的更好的性能，是渗镀的主要发展方向。
CAS号：
性质：渗镀品种之一。欲渗入的元素为两种、三种或多种元素。经热扩散渗镀后获得共渗层。有铬铝、铝硅、铬硼、硼铝、铬铝硼等多种共渗工艺。多元共渗不但充分发挥单一元素的各自优点，弥补其缺点，而且还可以赋予金属材料表面以新的更好的性能，是渗镀的主要发展方向。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条