By make experiment of plunger case surface abrasion hardness, in the last, adopt high strength engineering plastic to act as anti-abrasive material, make the success, get great result.
通过对柱塞的表面耐磨层进行各种试验，最后采用了高强度工程塑料进行压注试验，取得了成功，效果显著。
In order to get low surface roughness and high material remove rate, basic research on the optimization of process parameters in creep feed ultrasonic grinding engineering ceramics was conducted.
为了在加工中获得良好的表面质量和大的材料去除率，本文开展了蠕动进给超声磨削工程陶瓷参数优化的基础研究。
This technique is also an advanced surface engineering technique, whose product is also a kind of widely used surface engineering material.
这种技术还是一种先进的表面工程技术，这类材料也是一类应用广泛的表面工程材料。
Thermal spraying technology is an important part of surface engineering science. It is a new technology of material aggrandizement and surface character changing.
热喷涂技术是表面工程学的重要组成部分，它是一种材料表面强化和表面改性的新技术。
In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.
本文研究考虑损伤时材料的断裂应力，推导出了在表面能密度有限的情况下，损伤断裂应力的计算公式。
In the case of the limited level density of the material surface energy, the fracture stress and the calculation formula of the engineering damage were studied.
本文研究考虑损伤时材料的断裂应力，推导出了在表面能密度有限的情况下，损伤断裂应力的计算公式。
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