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为妥善解决好盘龙山铁矿铁精矿运输难、影响生产的问题,建设了一条矿浆管道输送铁精矿,替代了公路汽车运输,不仅解决了矿山因精矿不畅而导致矿山停产的问题,同时为矿山节约了生产成本,创造了较好的经济效益和社会效益。 相似文献
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areearthshaveabeneficialeffectsonpromotingthecropgrowthandincreasingitsyield .Someresearchershavedemonstratedthattherareearthscannotentertheprotoplastandonlystayoutsidetheplasmamembrane[1] .Thereisanoxidation reduction (redox)systemontheplasmamembraneofpl… 相似文献
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The effect of NO on lanthanum-induced antioxidant activities in rice was evaluated. The results showed that the uptake and translocation of La from root to shoot were obviously inhibited by 10μmol·L^-1 sodium nitropmsside (SNP), a donor of NO, in the seedlings grown in Mura B nutrient solution with 100μmol·L^-1 La. Although the content of ascorbate acid (AsA) were scarcely affected by La or NO in our experiment, La decreased significantly the activity of SOD and content of GSH, while promoted H202 content in leaves. Furthermore, NO blocked these La effects. Taken together, the results suggested that NO relieved La toxicity in rice. A possible role for NO effects on antioxidant activity was discussed. 相似文献
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