vn的例句大全

A series of experimental Si-Mn series spring steel which has different vanadium content was smelt in laboratory by Fe-V or VN alloying. The penetration hardenability, temper resistance, surface decarbonization and mechanical properties of the test steel were studied.

分别采用VN、Fe-V合金在实验室冶炼了不同钒含量的Si-Mn系弹簧钢，并系统研究了其淬透性、抗回火稳定性、表面脱碳敏感性和力学性能的变化情况。

But when the temperature too high ( 1473K), the thickness of VN reaction layer and the bonding strength of joint both decreased.

但是当温度过高，达到1473K时，反应层厚度降低，接头的性能下降。

Application of VN alloy in production of large size angle steel

VN合金在大规格角钢生产中的应用研究

Design of SNMP Based Network Management System in VN

基于SNMP的向量网网络管理系统的设计

A New Method to Analyze Nitrogen Content of VN Alloy

钒氮合金中高氮检测的新方法

Effect of ladle refining technique on yielding rate of VN alloy

钢包精炼工艺对钒氮合金收得率的影响

Research and application of VN microalloying high strength steels

钒氮微合金化高强度钢的研究及应用

Application of VN 12 alloy in V-N microalloyed steel

VN12合金在钒氮微合金化钢中的应用研究

With aluminum content in steel increasing, the amount of VN precipitation decreased.

随着钢中铝含量的增加，VN析出量减少。

Application and analysis of VN alloy in non-hardening and tempering steel

V-N合金在非调质钢的应用探讨

Then we fabricated carbon coated VN/ C composite material to improve its rate capability and cycle performance.

采用炭包覆的方法制备了VN/C复合材料，VN的倍率性能和循环性能得到了进一步的改善。

Calculation of tin/ vn superlattice shear elastic module

TiN/VN超晶格薄膜的切变弹性模量的计算

Application and prospects of VN alloy

钒氮合金的应用及展望

The function and the development foreground of the chemical element of VN in the microalloyed steels

VN元素在微合金化钢中的作用和开发前景

Chemical kinetics of preparing VN from reducing and nitriding v_2o_5

V2O5还原氮化制备VN过程中的化学反应动力学

Aging treatment effectively improved the mechanical properties of alloys, VN precipitation greatly improves the hardness and yield strength.

时效处理有效改善合金的力学性能，析出的VN粒子极大的提高了合金的硬度及强度。

Application of VN alloy in 400? Mpa-grade reinforced bar

氮化钒合金在400MPa级钢筋中的应用

The reaction kinetics of preparing VN from reducing and nitriding V_2O_5 by solid carbon was discussed.

研究以碳作为还原剂，还原氮化五氧化二钒制备氮化钒过程中的还原氮化反应动力学。

The development and the popularization application of the VN microalloyed steels areemphasized.

强调了VN微合金化钢的研发和推广应用。

This essay tries to solve the finance and management problems interrelated by integrating the energy demand and hydropower development situation of VN.

本文结合越南能源需求与水电能源开发现状与要求等研究越南水电能源开发的融资模式与管理问题。