1.
Laser Remelting on Surfaces of 20 Steel and 5CrNiMo Steel after Boronization;
20钢和5CrNiMo钢表面渗硼后的激光重熔
2.
The Research of Carbonitriding with Rare Earth for the 20 Steel Ring in Poisonless Salt Liquid;
20钢制纺织钢领无毒液体C-N-Re共渗研究
3.
Research of Welding Speciality and Mechanism of New-style Wearing Resistant Cast Steel and 20 Steel;
新型抗磨铸钢与20钢的焊接特性及机理研究
4.
STUDY ON THE PROPERTIES OF STRUCTURAL TUBE PRODUCED BY USING CC 20 STEEL ROUND BILLET
20钢连铸圆坯生产结构管的性能研究
5.
Research and Development of Mould Fluxes in 20 Steel Bloom Continuous Casting;
20钢大方坯连铸保护渣的开发与研究
6.
Musical analysis on the No.20 Piano Concerto by Mozart;
莫扎特第20钢琴协奏曲的音乐学分析
7.
Study of Process and Performance after Combination Surface Treatment on 20 steel
20钢复合表面处理技术的研究(英文)
8.
Technic and Performance of Steel 20 Treated by Low-temperature Chromizing in Salt-bath
20钢低温盐浴渗铬工艺及性能研究
9.
Coating Structure of 20 Steel Heat Exchanger Tube by Hot-dip Aluminizing
热浸镀铝20钢换热器管束的镀层结构
10.
Production practice on casting the round tube blank of steel 20 with round tube blank continuous caster
圆坯连铸机浇铸20钢铸坯的生产实践
11.
Effect of Rare Earth Element Lanthanum on Structure and Properties of 0.20C Steel
稀土元素镧对20钢组织和性能的影响
12.
The materials of semicircle seamless steel tube can fall into carbon steel (20#) and stainless steel (321).
半圆无缝管材质有碳钢（20#钢）和不锈钢（321钢）。
13.
Constructed with20*20 square steel tube. coated with epoxy resin powder on the surface.
· 20*20 方钢结构，表面经环氧树脂静电粉末喷涂。
14.
Research of Improving the Guality of the Fine Guality Carbon Structural 20# Steel Plate.;
提高优质碳素结构钢(20#)钢板质量的研究
15.
Sales (Profits / Steel output) plunged by 20 %.
销售额(利润／钢铁)产量猛跌了20％。
16.
Practice of 20~# Tube Blank Steel Produced by EAF with Compact Process
电炉短流程生产20~#管坯钢工艺实践
17.
Pass design of medium section mill for 20/12.5 unequal angle steel
中型轧机生产20/12.5号角钢的孔型设计
18.
Optimum Design Roll Passes of Rolling No.20 Angle Iron Through Medium Section Mill;
中型轧机轧制20号角钢孔型优化设计