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The scales of "Sorbonne","Mera star","Siberia","Tiber" were used to study systematically soilless cutting skills of Oriental lily from pretreatment of scales, cutting medium to nutrition solution. The results indicated:① using broken dormancy bulbs which experienced disinfection and exposing could prevent it from rot and enhance propagation index;② There is no difference among four varieties on information of bulblet, so all four varieties can be propagated bulbs though cutting.

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For oil drilling, oil and gas wells in the circulation rotary drilling mud to increase agent, cooling the bit, cutting away material from the debris, lubricating the drill pipe, closed hole wall, oil and gas pressure control to prevent the oil from the spray.

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To prevent symptoms of coeliac disease from occurring it is necessary to completely eliminate gluten from the diet.

以防止癥狀的腹腔疾病的發(fā)生是有必要徹底消除面筋從飲食習(xí)慣永久免费看A片在线看视频欧美。

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From this experiment, frequency response function could be found, and modal parameter also could be known by curve fitting, then compared with the differences of mode shape and natural frequency by using those modal parameters, also compared with finite element analysis, the results could be applied to detect the structure of beams and prevent it from damage and corrode for the safety in the future.

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Taxes cause deadweight losses because they prevent buyers and sellers from realizing some of the gains from trade.

稅收引起的無謂損失是因為它使買者和賣者不能實現(xiàn)某些貿(mào)易的好處变态自拍日韩欧美在线观看网站免费。

The hepatocytes from vitamin E deficience rats were more sensitive to the toxicity of TNT, and supplement of vitamin E, treatment of desferrioxamine and dithiothreitol could prevent hepatocytes from toxicity of TNT.

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It is concluded that mixture of deoxidant elements, reduction of oxygen and hydrogen source and improvement of escaping condition of oxygen from surfaced layers can prevent surfaced layers of copper-nickel alloy from producing gas holes efficiently.

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