常見例句The effects of grain size on the tribological properties of nanocrystalline Ni were investigated.考察了晶粒尺寸對納米晶鎳材料摩擦磨損性能的影響。The effect of calcining temperature on the thermal stability and grain distribution was investigated by means of XRD, TEM, BET and TG-DTA measurements.實驗證明，對不同溫度處理后的復(fù)合納米晶表現(xiàn)出良好的熱穩(wěn)定性。 返回 nano-grain