分布的

By the comparison between archaeological stratigraphy, sediment characteristics of cultural layers and cultural interruptions, 46 ~(14)C chronological data of buried paleotrees and peat, the synthetical analysis of the distribution laws of sites, and the reference to the results from other scholars, we can see that there are 7 cultural interruptions in the three Gorges and 7 cultural interruptions in the Yangtze Delta. They are from the last stage of Chengbeixi Culture to the initial stage of Daxi Culture (7200～6000a BP)→the third stage of Guanmiaoshan Culture Style of Daxi Culture (5800～5500a BP)→the initial stage of Shangzhou Culture (4000～3500a BP )→the last stage of Shangzhou Culture (2500～2200a BP)→During the Song dynasty Culture (960-1276AD) During the Ming and Qing Culture (1368-1911AD) in the prehistorical and historical period in the three Gorges.

对长江三峡和长江三角洲考古遗址进行地层对比，考古遗址文化层和文化断层沉积特征、文化层的叠压关系、考古遗址淤砂和淤土层厚度、46处埋藏古树和39处泥炭的~(14)C年代统计数据和空间分布规律、文化遗址分布的时空变化规律等特征综合分析，发现长江三峡地区新石器时代到历史时期考古遗址地层中有7期文化断层：(1)城背溪文化末期到大溪文化初期(7200～6000a BP)；(2)大溪文化关庙山类型三期(5800～5500a BP)；(3)商周早期(4000～3500a BP)；(4)商周晚期(2500～2200a BP)；(5)宋代时期(960-1276AD)：(6)明清时期(1368-1911AD)；(7)近现代时期。

These tridentate chromium complexes afforded moderate to high activity for ethylene oligomerization and polymerization with broad oligomer distributions from C_4 to C_(36) and some complexes got special distributions of oligomers.

在改性甲基铝氧烷的作用下，这些配合物都表现出中等或高的齐聚和聚合活性，并且齐聚产物分布较宽从C_4到C_(36)，一些配合物还得到了特殊分布的齐聚产物(C_6含量很低)。

A novel method for estimation of original flow length distributions from sampled flow statistics is proposed to obtain the distribution feature of unsampled flows.

摘要为了得到未抽样流的分布特征，提出一种新的由抽样报文流数据来估计原始未抽样流长度分布的方法。

The hardened case ununiformity and quenching cracks of H32058 driven ring gear after the medium frequency induction quenching were analyzed.

分析了H32058从动齿圈经中频淬火后出现的淬硬层分布不均和淬火裂纹等缺陷的原因，通过重新设计感应器和反复工艺调试，利用两次中频加热淬火方式实现预热中频淬火，获得了沿齿廓分布的淬硬层。

The phase probability distribution centralizes more and more with the increase of |α|2. And the increase of g destroys the symmetry of the phase probability distribution.

随着|α|~2的增加，相位概率分布越来越集中，g的增大破坏了相位概率分布的对称性。

The overall population distribution has been evened up over the past 60 years.

全国人口分布的重心也向西北方面移动；但在不同的历史阶段上，人口地区分布的变化趋势各不相同

Impacts on flow of water and transport of solute of factors such as soil texture and structure, discharge rate of emitters, depth of laterals and time lasted in a single irrigation are simulated.

利用建立的地埋点源土壤水运动和溶质运移数学模型描述地下滴灌条件下土壤水、肥运动的分布规律，将土壤质地结构、滴头出流量、滴头埋深和单次灌水历时等因素对土壤水分布的影响进行模拟分析。

So far, no single method or combined methods can unambiguously provide complete quantitative analyses of lignin distribution. Therefore, further studies are needed to explore the complex structure of lignified cell wall.

迄今为止，没有一种单一的方法或联合方法能清晰明确地提供完全的木素及其分布的定量分析，对木素及其分布研究还有待于进一步完善。

And the variation of deformation rate of plasticized material was also simulated. The calculated distribution of plastic zone in the jo...

对摩擦焊接过程中塑性区的分布规律做了定性的实验验证，塑性区分布的计算结果和实验结果吻合较好。

In this paper,the law of the prestressed anchor rope beam s transfer is analyzed by elasticity theory ,and the distribution curve of the extra stress is simulated.

运用弹性理论分析方法，对地梁荷载在被加固岩土体中的传递规律进行了分析求解，模拟求出附加应力沿深度方向的分布曲线，并通过与现场试验结果对比，得出被加固岩土体中附加应力分布的合理结论。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。