中间试验仅包括脱硫阶段.The pilot - plant tests included only the desulfurization step.要根据具体情况来决定脱硫在CO变换之前或者之后.Sulfur removal can be carried out either before or after CO conversion as the situation dictates.当脱硫剂累计饱和硫容达20%时,可用于生产硫酸....
用散光的方法来提取光源在Z轴上的位置。Using astigmatic method to extract information of light source in z axis.:PRK治疗较高度数散光的疗效确切, 预测性强.For moderate and higher astigmatism, PRK provides better accuracy and predication.对远视兼散光的人手术后结果的预期较少.Peo...
Preadult experience can influence the antennal sensitivity of the parasitoid.羽化前经历对成虫触角的反应敏感性有一定影响.Antennal sensilla type, number and distribution of the Tessaratoma papillosa Drury were studied by scanning electron micr...