The high strength steel (100,000 psi minimum yield) piston rod has a ground, polished, and chrome plated surface.

高强度钢（100，000防扩散的最低收益率）活塞杆有一个理由，打磨，表面镀铬。

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Increasing the yield limit of high strength steel, and increasing the depth of submergence, the form of the differential equation's result will not only be limited with the complex number.

由于高强度钢材的屈服极限不断地增大，下潜深度的不断增加，弯曲微分方程解的形式将不仅限于复数解。

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Mechanical properties and fracture mechanism of high strength steel sheet with low yield ratio under impact loading have been studied through instrumented impact and quasi-static tensile tests.

通过室温下的仪器化冲击试验和静态拉伸试验，研究一种低屈服比高强度钢板在冲击载荷下的力学性能和断裂机理。

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