查询词典 main trend

Firstly, it described the definition, general reasons for formation, and the trend and conversional way of the dual economic structure by explaining the theory of dual economic structure, Secondly, it defined the distinctive features and main reasons for the formation of the dual economic structure through the demonstrational analysis of the dual economic structure.

其次，对我国二元经济结构的实证分析，阐述了我国二元经济结构形成的主要原因和突出特征，同时也分析了二元经济结构对我国经济社会发展的影响和转换二元经济结构需要解决的关键问题。

The result makes clear: 1 index of pressure of Chinese farmland zoology is older, be in ascendant trend, its are main the reason is our country farmland the area decreases in great quantities continuously and population increases;2 farmland pressure quickly to save time difference bigger, the farmland pressure of southeast and southwest is apparent prep above is mid with heighten of grade of index of pressure of zoology of farmland of municipality directly under the Central Government of upper zone;3 and southeast ministry area, upper, northwest and mid major area exponential grade is invariant, only mid with the decrescent of grade of index of a few district, but not apparent.

结果表明：1近11年的中国耕地生态压力指数比较大，并处于上升趋向，其主要原因是我国耕地面积持续大量的减少和人口快速的增加；2耕地压力省际差异比较大，东南和西南地区的耕地压力明显高于中部和北部地区；3直辖市和东南部地区耕地生态压力指数等级增高，北部、西北和中部的大部分地区指数等级无变化，仅中部和东北部的少数地区指数等级变小，但并不明显。

Asymmetric over-introgression of the indica alleles on chromosome 7 and many specific regions on other chromosomes in the japonica genetic background is consistent with the general trend observed in the RIL and F_2 populations of the same cross, suggesting a high genetic load in the japonica gene pool, and japonica genome experienced a very severe bottleneck by artificial domestication.2 Genetic background effect on QTL expression of grain weight and its related traitsGenetic background effect on main-effect QTL and digenic epistatic QTL mapping for GWT and its related traits including GL, GW and GT was dissected by a large set of reciprocal introgression lines and recombinant inbred lines derived from Lemont and Teqing in Beijing environment.

籼粳相互导入具有不对称性，粳稻向籼稻背景的平均导入频率与期望值相仿，相反籼稻向粳稻背景的平均导入频率大大高于理论预期，位于第7染色体和一些其它染色体的特殊区段存在籼稻等位基因的超导入现象，在来自相同亲本的重组自交系和F_2群体中也观察到同样的导入趋势，表明粳稻基因组具有较大的遗传负荷，粳稻品种在人工驯化过程中曾经历过一个非常剧烈的遗传瓶颈。2水稻籽粒相关性状的主效和互作QTL表达的遗传背景效应利用Lemont和特青培育的双向导入系和重组自交系群体，在北京环境下定位影响千粒重及其相关性状如粒长、粒宽和粒厚的主效和互作QTL，分别在特青背景导入系、Lemont背景导入系和重组自交系下检测到影响千粒重及其相关性状的主效QTL分别为33个、27个和13个，互作QTL分别为4个、8个和23个，其中仅有6个主效QTL(QGwt5，QGl1，QGl3b，QGl4，QGw7和QGw8)在籼粳两个不同背景下共同表达，3个主效QTL(QGwt5，QGwt7a和QGt5)在导入系和重组自交系中共同表达，分别占检测到影响这些性状QTL总数的11.1%和4.3%，未检测到在3个背景下相同表达的互作QTL。

The development trend of gerontic patients with cancer in Suzhou shouldn't be ignored, and the lung cancer becomes the main cancer which threatens the gerontic patients of this city, so it is extremely important to develop cancer prevention and cure for the elderly actively.

苏州市老年人恶性肿瘤的发展趋势不可忽视，肺癌成为威胁该市老年患者的主要癌症，重视并积极开展老年人群恶性肿瘤的防治工作十分重要。

The Indica-Japonica differentiation is main trend in nuclear DNA,mtDNAand cpDNA in cultivated rice.The types of nuclear DNA,mtDNA and cpDNA insome accessionsare homeotype(nuclear DNA,mtDNA and cpDNA areall Indica type or Japonica type).

中国普野因地理分布不同，其遗传分化表现出多态性，江西东乡和湖南茶陵以及部分云南元江普野既不与籼稻聚在一起，又不与粳稻聚在一起，而独聚一类，其形态上亦比较原始，属于原始祖先型。

In the slow sorption stage, variations in sorption ratio in humic acid fraction was very small, and the influence of original concentration of phenanthrene was slight ; while for humin fraction, the sorption ratio of phenanthrene at lower initial concentration was significantly higher than at higher one, in addition, the sorption ratio showed a gradually increasing trend, indicated humin fraction as the main domain in charge of the slow sorption.

在慢吸附阶段，胡敏酸中菲的吸附比例变化很小，菲初始浓度的影响也不大；而对于胡敏素组份，低初始浓度条件下菲的吸附比例明显大于高初始浓度条件，并呈现逐步增加的趋势，表明胡敏素组份是慢吸附的主要发生域。

The trend of seawater is that the intrusion area varies as following rule: small to big to small to big, and the causation of seawater intrusion is the appropriate hydrodynamic and hydrogeological condition, and the main reason is that human activities change the groundwater hydrodynamical condition.

海水入侵的趋势为：海水入侵面积有小；大→小→大的变化规律：海水入侵的成因是具有了水动力条件和水文地质条件，而人为的改变地下水动力条件是发生海水入侵的主要原因。

The main content include:(1) Considering the serious problem of metal structure of the gantry cranes and the technology actual status and trend of fault diagnose nowadays, this papers analyze seriousness of the existing fault and impendency of maintenance.

本论文的主要内容包括：(1)针对门座起重机金属结构故障十分突出的问题，综合分析了门座起重机金属结构故障存在的严重性及维修的紧迫性。

The main flaws are the shrinkage of the jury system in practice; people's inactiveness in serving in a jury; the malfunctioning of the assessor to the greatest extent; serious professionalzing trend, and lack of effective constrains for the jury member.

这种缺陷主要体现在陪审制度在实践中不断萎缩，人们对担任陪审员积极性不高，陪审员没有很好地发挥作用，陪审员职业化倾向严重，对陪审员没有很有力的约束等。

The main reasons caused theses problems are as follows: beyond marine carrying capacity and environment capability by predatory and extensive manners, over-exploitation of bioresources resulted in the disturbance of marine ecosystem and the obstruction of matter and energy circulation. Marine environment pollution and unreasonable oceanographic engineering caused serious damage of marine entironments, weakness of marine eco-functions, and degradation of marine ecosystems. The population explosion as well as the trend of population towards coast inflicted tremendous pressure on marine resources and environment. The weakness of marine laws system and the infirmness of macroscopical control by government policies relulted in unreasonable utilization, inefficient management, and insufficient protection of marine bioresources.

其主要原因是：对海洋生物资源的掠夺性、粗放性开发，造成资源过度利用，超出海洋承载力及其环境容量，物质能量循环出现障碍，海洋生态系统失衡；海洋环境污染和不合理的海洋开发工程，造成生境破坏，生态功能减弱，生态系统退化；人口增长和趋海发展，给沿海资源环境造成巨大压力；涉海法律法规体系薄弱，国家宏观政策调控不力，未能合理利用和有效管理、保护海洋生物资源和海洋环境。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。