求翻译：试验研究表明，随着含镍量的增加，马氏体的含量变少、残余奥氏体含量增加、碳化物数量减少，马氏体板条束变小，碳化物的尺寸也变小。组织的变化，导致了力学性能的变化，随着含镍量的增加，试验钢的强度提高，塑性降低。是什么意思？

The experiments showed that with the increase of nickel content, the martensite content is less increase in content of retained austenite, carbides reduce the number of martensite lath smaller, the size of the carbides smaller. Organizational changes, resulting in changes of mechanical properties, t

Experimental research has shown that as nickel increased volume of martensite, the content is less, residual austenitic increases, carbide, reducing the number of maraging steel beam is small, the Carbide size is also smaller. Organizational changes that have led to changes in the performance of mec

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Experimental studies have shown that, with the increase in nickel, fewer content of Martensitic, increased residual austenite content, reduce the number of carbides, martensite lath-beam smaller, carbide size is smaller. Organizational changes, led to the change of mechanical properties, with the in

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