The paper presents the modern gun design of technical requirements for gun steel.

扼要叙述了近代火炮设计对炮钢提出的技术要求。

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Effects of the alloying elements on the heat-treatment process, microstructure and mechanical properties of a novel gun steel combined with high strength and toughness were investigated.

研究了合金化元素对新型高强韧炮钢的热处理制度、显微组织和力学性能的影响。

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The correlativity between neutral salt spray accelerated test and atmospheric corrosion test in Shijiazhuang was studied by the mass loss determination of 45 steel, A3 steel, 20 steel and gun steel.

以45钢、A3钢、炮钢、20钢为金属试样，研究它们在中性盐雾加速试验及石家庄大气环境暴露试验中腐蚀失重与时间的变化规律。

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Will you not vote for the killer if you already feel the cold steel of his gun against your head?"

VOA: special.2009.10.02

Thousands of genes stick to each ball, and the combination is loaded into a "gene gun"--two small stainless-steel chambers and a vacuum pump--that uses compressed helium.

FORBES: Millions Served

Thousands of genes stick to each ball, and the combination is loaded into a "gene gun, " which consists of two small stainless steel chambers and a vacuum pump.

FORBES: Millions Served

In 1914, in the run-up to war with Germany, a stainless-steel alloy developed to prevent corrosion in gun barrels went on sale in Sheffield, England.

NEWYORKER: A Fork of One��s Own