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The thesis is based on income question, forest coverage rate and grop production.to beging with, date envelopment analysis is proved that it can be applicated into grain for green in shan-bei district, and then in view of the fact, seven esential factors which have influence on the project are found out: expense of dam, expense of crop,expense of cash tree ,expense of defense tree,other economic crop,expense of grass and graziery;and the output factors include:income of gdp,pure income per captia,the area of decreasing land loss,graziery income ,crop production,income of tree,the totle income of economic crop.after the date of each facts are puted into dea model,unefficiencial decision making units found.the data that are got through adjusting unefficiencial dmus dy dea can offer guide in shanbei district upgrading of an industrial structure.at the same time ,taking into account some possible problems in or after grain for green in shan-bei district,the thesis bring out some propesal to improve the circumstance,enhance the life level and putthe relation of population,resource and circumstance into a healthy orbit.

论文以解决陕北地区的收入问题，植被问题以及粮食产量问题为出发点，首先从理论上分析了包络分析方法在陕北地区退耕还林中运用的可行性，然后结合陕北地区目前的实际情况，综合分析出影响陕北地区退耕还林的关键的七个因素作为输入指标：水利水保设施投入，农作物投入，经济林种支出，防护林支出，其它经济作物，草类支出，畜牧业投入；以退耕还林所要解决的最终问题作为输出指标：GDP收入、农民人均纯收入、水土流失减少量、牧业总产值、粮食产量、林业总产值、其他经济作物总产值。将各指标所对应的数据代入模型后，通过分析求解得出非有效的决策单元，再运用包络分析方法的一些基本原理对非有效的决策单元进行调整，由此所得的数据对陕北地区的实际投入具有很好的指导意义。同时，又针对陕北地区在退耕还林过程中以及之后可能面临的困境，提出了一些建议和对策。最终使得陕北地区的投资环境尽快得以改善，使农民尽快脱贫致富，使人口、资源、环境的关系尽快纳入良性循环的轨道上。

A new method and the principle is presented for plotting the critical metacentric height curve which meets IMOs intact stability criteria and weather criteria,and the critical metacentric height curve which meets 1976 SOLAS intact stability criteria. And the critical metacentric height curve is used in the Stability check of bulk grain carriers in accordance with the stability rules for bulk grain carriers.

本文还具体给出了满足IMO完整稳性和天气衡准的临界初稳性高度的求作方法，以及满足1976 SOLAS公约散装谷物船舶的稳性衡准要求的临界初稳性高度的原理和求作方法，并将由此得到的临界初稳性高度曲线综合运用到散装谷物船舶的稳性校核。

It was observed in the Cr-Ni-Mo steels that the intergranular ductile fracture is caused by the reprecipitation of MnS particles in the steel with ordinary S content, and the overheating is also performed by the repreeipitation of AlN or VC particles along the prior austenite grain boundaries in one containing low S. Thus, a proposal seems to be made that the mechanism of overheating of Cr-Ni-Mo steels is related to the solution and reprecipitation of MnS, AlN or VC particles along the prior austenite grain boundaries.

MnS粒子的重新析出使普通硫含量的Cr-Ni-Mo钢发生沿晶延性破断，而AlN或VC粒子在高温奥氏体晶界的重新析出也能使低硫的Cr-Ni-Mo钢过热。

Other seed fell on rocky ground, where it had not much soil, and immediately it sprang up, since it had no depth of soil; 6 and when the sun rose it was scorched, and since it had no root it withered away. 7 Other seed fell among thorns and the thorns grew up and choked it, and it yielded no grain. 8 And other seeds fell into good soil and brought forth grain, growing up and increasing and yielding thirtyfold and sixtyfold and a hundredfold.

他撒种的时候，有的落在路旁，飞鸟来把它吃了；有的落在石头地里，那里没有多少土壤，即刻发了芽，因为所有的土壤不深，太阳一出来，被晒焦了；又因为没有根，就乾枯了；有的落在荆棘中，荆棘长起来，把它窒息了，就没有结实；有的落在好地里，就长大成熟，结了果实，有的结三十倍，有的六十倍，有的一百倍。

For the La-filled skutterudite compound, the figure of merit increases with the increasing of grain size, indicating that a relatively large grain size yields better thermoelectric properties for these compounds.

具有较大晶粒尺寸的填充〓化合物容易获得高的ZT值。

The hang closely together on this trap and clear: Wang Wei, deputy to the high cost of bait, the actual control of the Taxodiaceae Ningbo, China Light and other enterprises and companies commissioned by the signing of palm oil imports Contracts, use of imported grain and oil shipping schedules and letters of credit loan period of three months of the time difference, letters of credit to cash in the capital of Ningbo in the short-term loans, access to high interest rates; On the other hand, loan-sharking in a large number of bad debts, not enough to pay credit Credit card, through its low-cost selling exists in Tianjin Sheng storage of grain and oil palm oil for cash flow.

的环环相扣，一起在这个陷阱和明确的：王伟，副的饵料成本高，对宁波杉科，中国轻和其他企业和进口棕榈油签署委托公司的实际控制合同，使用进口粮食和石油运输的时间表和信贷的三个时差个月贷款期限的信，信用证现金在宁波资本的短期贷款，获得高利率，另一方面另一方面，放高利贷的坏帐大量不足以支付通过其低成本销售信用卡信用卡，在天津盛粮油现金流量棕榈油存储存在。

In view of the vast range of mountainous and hilly areas,a unique characteristic of Fujian topography,it especially analyses the effects of topograph on climate and soil nutrient storage.According to the mechanism of how the grain produtivity comes into being,this paper achieves the calculation of potential grain productivity in variou...

尤其针对福建山地丘陵面积大的特点，专门分析了地形因素对气候及土壤养分存贮状况的影响，根据作物生产力形成的机理，采用光、温、水、土逐项衰减的方法，计算了福建省各地以水稻为代表的粮食作物的土地生产潜力，并据此提出了发展福建粮食生产的相应建议。

The influencing effects of grain production systems on the population of second generation of cotton bollworm in cotton were studied. The multi-harvest system provided cotton a good protection against cotton bollworm due to the corn plants in this system strongly attracted cotton bollworm adults when they were ovipositing, therefore reduced the density of cotton bollworm in cotton, compared with ton-grain system..

转Bt基因抗虫棉对棉田节肢动物多样性的影响用吸虫器取样和捕虫网取样两种方法，研究了转基因抗虫棉和化学防治对棉田节肢动物多样性的影响，发现转Bt基因棉棉田与非转基因常规棉棉田棉花害虫、自然天敌和中性节肢动物亚群落没有显著差异，而化学防治可以使各亚群落的个体数量、物种数量、多样性指数发生剧烈变化。

In case a storage enterprise is cancelled, dissolved or bankrupt in accordance with the law, the China Grain Reserve Management Corporation shall be in charge of redeploying its central grain reserve.

承储企业依法被撤销、解散或者破产的，其储存的中央储备粮由中国储备粮管理总公司负责调出另储。

Vapoured DDVP was used as a fumigant for bulk grain to control stored grain insects at the condition of circulative fumigation system. The technique gives good effectiveness at dosage of 0.79g/m3 and the residue in paddy accorded with safe standard after mechanical ventilation.

DDVP气化后，能够在环流熏蒸系统中进行粮食实仓熏蒸杀虫，以空间0.3g／m3、粮堆0.79g／m3的用药量，就可以得到较好的防治效果，并且在机械通风后，稻谷中的DDVP残留量完全符合安全标准。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。