v.t.

用法例句

Status and development of vacuum-pumping process for high vacuum multi-layer insulated vessels;

高真空多层绝热抽真空工艺研究现状与发展

The microhardness distribution,performance featrues and its production and application were also described with a view to promote the vacuum nitriding process widely used in extrusion die for aluminum material in our country and improve the service life of hot extrusion die for aluminum profiles,so that green heat treatment can be realized.

分析了4Cr5MoSiV1钢热挤模经低真空氮化的渗层组织及其显微硬度分布、工艺运行特点及其生产应用情况,以期推动真空渗氮工艺在我国铝挤压模具的推广应用,提高铝型材热挤压模使用寿命,并实现绿色热处理的目标。

It utilizes advanced technology of straight screw thread joint,scientific concrete mix proportion of HPC,advanced technology of presses syrup in vacuum in construction.

深圳湾公路大桥(深圳侧通航孔桥)主塔为变截面单索面独斜塔,根据其设计要求及施工特点,施工中采用液压自爬模,直螺纹连接技术,高性能砼配比,真空压浆工艺等。

Study of Process Characteristics and Nitrided Layer Properties of Vacuum Nitriding

真空渗氮工艺特性及渗氮层性能研究

Low pressure vaccum carburizing for Cr17Ni2 stainless steel

Cr17Ni2不锈钢低压真空渗碳工艺研究

Study on Oxycarbonitriding Processes with Air and Methane;

空气—甲烷氮碳氧多元离子共渗工艺的研究

Study on Ion Oxynitriding and Ion Nitriding Post Aging & Oxidizing Processes;

空气离子氮氧共渗和时效氧化工艺的研究

Studies of Stainless Steels Nitrided by Hollow Cathode Discharge-assisted Plasma Nitriding Technology

不锈钢空心阴极辅助离子渗氮工艺研究

Process and Mechanism of Ion-nitriding under the Atmosphere of N_2 and N_2-NH_3;

纯氮、氮—氨离子渗氮工艺和机理研究

Research on New Process of Ion Nitriding at Pure Nitrogen Atmosphere and Ion Nitriding Mechanism;

纯氮离子渗氮新工艺及离子渗氮机理研究

Concentration of Reverse Osmosis Concentrated Water by Vacuum Membrane Distillation

真空膜蒸馏浓缩反渗透浓盐水的工艺研究

Factors Influencing Preparing Micro-pore Composite Foam Aluminum by Vacuum Infiltration Method

真空渗流法制备微孔复合泡沫铝的工艺研究

Permeability Measurement Method of the Glass Mat in VARI Process

真空灌注成型工艺中玻璃纤维毡渗透率的测量

Study on nitrogen-rich layer fast plasma nitriding process and mechanism

富氮层快速离子渗氮工艺及机理研究

Study on Process and Mechanism of Ion N-C-O Multielements Penetration in an Atmosphere of Air and Organic Liquid;

空气—有机液体离子氮碳氧共渗工艺及机理的研究

Effect of Liquid Nitriding Technology on the Thickness and Hardness of the Nitrided Layer

液体渗氮工艺对CrNiMo钢渗层厚度和硬度的影响

new technology of ionitro-carbon-titanizing

离子氮-碳-钛三元共渗新工艺

Study on gas nitriding process of GH4169 alloy

GH4169合金气体渗氮工艺研究

RE-nitrocarburizing Technology for Piston Rod Made of 40CrMnMo

40CrMnMo活塞连杆稀土离子氮碳共渗工艺

Research on Ion-nitrocarburizing Processes and Mechanism with N_2 and CH_4 for 40Cr;

40Cr钢氮气—甲烷离子氮碳共渗工艺及机理的研究

Fabrication of High Nitrogen Stainless Steel by High Temperature Nitriding and Investigation on Microstructure and Performance;

高温渗氮制备高氮不锈钢工艺及其性能的研究