The surface hardness variations of some kinds of polymers were compared and the influence factors such as ion species, particle energy and dose were analyzed.
通过比较几种不同类型的聚合物材料在注入前后表面硬度的变化，分析注入离子种类、注入能量、注入剂量等工艺参数对聚合物的影响。
The gain limitation of particle velocity and acoustic energy flux in the sea surface noise field and half-isotropic noise field is discussed based on orientation-exponent theoretic.
从指向性指数出发分别推导了海面噪声场条件下和半各向同性噪声场条件下质点振速检测器增益和声能流检测器增益的理论极限。
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