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Firstly, according to study dynamic changes of the elements structures in succession about natural and artificial forest, then summarized regular patterns;at the same time.based on the study of Coupling Relationship between structure and function of water conservation forest established the ideal structures from the stand level and the watershed level. The ideal structures from the stand level: uneven-aged, double layer and mixed structure, and trend to natural forest. The watershed level followed the same principle, that is double layer patches, uneven-aged forest well-distributed and to build up different forest patches in watershed.

首先，经过对北京山区水源林天然林和人工林结构要素的演替动态研究，提出其发展规律，同时依据水源林结构与功能耦合关系研究，从林分层次和流域层次上分别构建了水源林的理想结构，其中，林分层次上水源林的理想结构为：异龄、复层、混交的结构状态，林分结构趋于天然林结构的特征；在流域层次上水源林的理想结构为也应形成&复层&、&异龄&、&混交&的结构，即：在流域各水源林斑块间形成林冠层复层、斑块内部乔木、灌木、草本层的复层；不同水源林年龄面积上的均匀分布；形成不同水源林斑块间的镶嵌分布。

The discipline of sugar cane and sugar engineering plays an important role in the technical support for Guangxi's "Sweet Project", It has 48 research achievements that have passed the examination at the provincial level, among which, 1 is at the international leading level, 3 are at the national leading level and 19 has reached the advanced level in the country.

在广西&甜蜜的事业&中，广西大学甘蔗糖业工程学科发挥了重要的技术支撑作用。近年来，该学科通过省级鉴定科研成果共48项，其中1项达国际先进水平，3项为国内领先水平，19项达国内先进水平。

I Each special sensation has the single-track wholeness of relevant operations running through all levels of the brain (including the organ level, cell level, molecular level and the underlying field level of life).

每一种具体的感觉都具有特有的贯通脑的各层面（包括脑的组织水平、细胞水平、分子水平以及更深层面的生命场水平）相关操作的狭隘整体性。

Article 8 For national focal point shelter belt, and forest for special uses, the competent forestry authority of State Council shall produce opinions and report to the State Council for approval, then promulgate it; for local key shelter forest and forest for special use, the competent forestry authority of the people's government of a province, autonomous region or municipality directly under the central authority shall produce opinions and report to the people's government at the same level for approval, then promulgate it; for other shelter forest, timber forest or special-use forest as well as economic forest or fuel forest, the competent forestry authority of people's government at county level shall demarcate according to the state's relevant regulations on forest categorization and the arrangement and organization of the People's government at the same level, and report to the people's government at the same level for approval and promulgation.

第八条 国家重点防护林和特种用途林，由国务院林业主管部门提出意见，报国务院批准公布；地方重点防护林和特种用途林，由省、自治区、直辖市人民政府林业主管部门提出意见，报本级人民政府批准公布；其他防护林、用材林、特种用途林以及经济林、薪炭林，由县级人民政府林业主管部门根据国家关于林种划分的规定和本级人民政府的部署组织划定，报本级人民政府批准公布。

Currently, there are 12 state-level scenic areas, including Huangguoshu Grand Waterfall, Dragon Palace, Hongfeng Lake, Zhijin Cave, etc; 6 state-level natural protection zones, including Mt.Fanjing, Maolan Karst Forest, Xianning Sea of Grass,etc; 19 state-level key culture protection relics, including the site of Zunyi Meeting; Anshun Fuwen Temple, etc; 7 state-level forest parks, including Sea of Bamboo, Mt.

拥有黄果树、龙宫、红枫湖、织金洞等12个国家级风景名胜区和梵净山、茂兰喀斯特森林、威宁草海等6个国家级自然保护区；有遵义会议会址、遵义杨粲墓、安顺府文庙等19个全国重点文物保护单位；有竹海、凤凰山、瑶人山等7个国家森林公园。

Prioritisation Methodologies Fire safety policy level Life safety property safety objectives level Ignition prevention fire control safe egress rescue tactics level Occupants doors communications internal planning travel distance flues ducts components level

Prioritisation 方法学点燃安全政策水平生活安全特性安全目的水平点火预防火控制保险箱出口援救手法水平占有者门沟通内在的计划旅行距离烟洞管成份水平

The results showed that the effects of nutrition level on average daily gain,feed conversion rate and meat quality had no significant difference;on fatback thickness and ham percent were significant.Composite selection index was used to evaluate the effect of nutrition level on finishing pigs,the results showed that the effect of high nutrition level on crossed finishing pigs was the best during body weight of 35~100 kg. Nutritional level ; Finishing pigs ; Growth performance ; Carcass quality ; Meat quality ; Comprehensive selection index

本试验将日粮消化能、蛋白质和赖氨酸设计高、中、低三个档次，以杜洛克公猪与莱芜猪合成系母猪配套生产的杂交猪为对象，进行了饲养试验和屠宰试验，旨在探讨日粮营养水平对杜莱杂交商品猪的生长性能及肉品质的影响，为养猪生产提供参考。1材料与方法1.1试验猪选择与分组选择出生日龄基本一致、生长发育良好、体重35 kg左右的杜莱断奶仔

The maximum HOMO energy level and LUMO energy level were －0.2776 and －0.0828 a.u. at F＝0.01 a.u, respectively. Further increasing the electric field would make the HOMO energy level and LUMO energy level decreased.

时能量达到最大，为－297.4217 a.u。，此后继续增大电场强度，系统总能量则开始降低； EH 和EL 随着电场的增加均逐渐增大，在 F＝

Now the model research has been use to explore the affection of the gene on the plant growth, and the virtual plant had been probed into from three level, i.c., micro level, individual level and the macro level.

现在，已经发展到了微观水平，开始研究基因与植物形态关系，形成了以虚拟植物模型为中心，以植物个体形态为主导的宏观、中观和微观3个层次的研究格局。

Level of CaM of leaves in Ginkgo and Ailanthus is sensitive to drought stress:theCaM level of Ginkgo first decreased and then increased,CaM level of Ailanthus went ondecreasing along with stress strengthen.

银杏和臭椿叶片CaM水平对干旱胁迫敏感：随着胁迫加强，银杏CaM水平出现先下降后上升的趋势，臭椿CaM水平持续下降。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。