The calculation of purity for V Ti bearing magnetite is discussed, and the purity index can be used to evaluate dressing result.
讨论了钒钛磁铁矿提纯度的计算方法，可采用提纯度指标对选矿的选别效果进行正确的评价。
Objective: To evaluate the variation of the lung volume in acute respiratory distress syndrome (ARDS) dogs when PEEP set at levels of different inflection points on the pressure volume(P-V) curves.
目的：探讨根据压力-容积（P-V）曲线选择不同水平的呼气末正压（PEEP），急性呼吸窘迫综合征（ARDS）犬肺容积的变化情况。
Objective To evaluate the clinical efficiency of V-Y advancement of skin flap in repairing fingertip defects.
目的探讨v - Y推进皮瓣修复指端缺损的临床效果。
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