通过培养试验及盆栽试验研究了外源镧在红壤中的有效性及其对土壤酸度的影响。
The availability of exogenous lanthanum and its effect on soil pH in red soil were studied.
结果显示，肺毛细血管内皮细胞及其细胞紧密连接明显破坏，其对硝酸镧及甲基丙烯酸甲酯的通透性显著增加。
The results showed that the capillary endothelium and their tight junctions were partly destroyed and their permeability were significantly increased to lanthanum nitrate and methyl methacrylate.
研究了镧镁球化剂的球化能力及其对球墨铸铁白口敏感性和抗衰退性的影响。
The nodulizing power of the La-Mg nodulizer and its influences on the chilling sensitivity of nodular cast iron and the property of anti-degeneration were studied.
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