The corrosion resistance of the heavy rail steel as well as the strength and toughness, is a matter of major issues concerning railway operation efficiency and security.
重轨钢的耐腐蚀性能同其强度和韧性一样，事关铁路运营效益和安全等重大问题。
The corrosion resistance of the heavy rail steel as well as the strength and toughness, is a matter of major issues concerning railway operation efficiency and security.
重轨钢的耐腐蚀性能同其强度和韧性一样，事关铁路运营效益和安全等重大问题。
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