The highstrengthsteel (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。
2
Increasing the yield limit of highstrengthsteel, 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。
3
Mechanical properties and fracture mechanism of highstrengthsteel sheet with low yield ratio under impact loading have been studied through instrumented impact and quasi-static tensile tests.