The research of synthesis and properties of superhard materials has been a focus of solidphysics and material science.
超硬材料的合成及其性质的研究,一直是凝聚态物理和材料科学研究的重点之一。
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Since pure radioactive ion beam can be implanted into material directly, research on solidphysics especially on impurity and defect in semiconductor become possible.
According to the theory of solidphysics from metal micro - structure and compression strength of tin-coating grain, a study is carried out in this essay on mechanism of parts stained with black dust.