Methods The relative quality of dust deposited in pulmonary intersititum of silicotic rats was evaluated by using polarizing microscopy and image assay system. 方法采用偏振光顯微技術(shù)和圖像分析系統，評價(jià)染塵大鼠肺組織滯留粉塵的相對量。
The thermal expansion coefficient of fluosilicate glass-ceramics is mainly affected by the crystal phases and their amount. 氟硅酸鹽微晶玻璃的熱膨脹性能主要取決于微晶玻璃的晶相組成及其相對含量。
The costs of reducing hardness depend on the relative amounts of calcium and magnesium compounds that are present. 降低硬度的成本取決于鈣及鎂化合物的相對含量。
