计算的

The result pointed out that the vertical distribution of foliage for each species was different,however,generally speaking,the foliage in upper crown (0.3CL) for broad-leaved species in natural secondary forest took a small percentage,about 10%;in middle or middle lower of the crown(0.4CL to 0.8CL) the branches here took the majority percentage of whole foliage,almost 60%to 75%;but in lower crown(0.8CL),there was about 10%of whole foliage.(5)The interspecies competition of trees in secondary forest was expressed by Hegyi competitioin index,and the active competitor was calculated by the competition zone radius and the tree position,DBH,and distance in the zone,it was not all competitors in tranditional calculation.The study introduced crown area overlap index to describe the crown competition between subject tree and its competitors,furthermore,the crown area was classified into 5 levels with a method of equal crown projection area,therefor,the resulting crown area overlap index showed more realities of existing stand conditons.(6)Based on the theoretics of multiply divide,the spatial strcture optimizing model of secondary forest stand selective thinning was developed by diversity mingling,aggregation index,competition index and crown area overlap index,also designed 10 constraint conditions which were related to forestry meanings,the objective function was solved by the implicit enumeration method with LINGO 9.0,using 0-1 integer programming.

并且得出，每个树种在树冠内相对高度上的叶量的垂直分布是不同的，天然次生林阔叶树种的叶量在树冠的上部(0.3CL以下)所占比例很小，约占10%左右；在树冠的中部以及中下部(0.4CL～0.8CL)，叶量所占比例最大，几乎集中了整个树冠60%～75%的叶量；而在树冠的下部(0.8CL以下)，几乎占很少的叶量，大约10%左右。5、采用Hegyi竞争指数来表现次生林内林木的竞争关系，并且根据竞争圈的大小和林木在竞争圈内的分布位置、大小与距离来计算有效的竞争木，并不是传统意义上的全部竞争木；本研究提出用树冠叠加指数来表示林木与周围树木的树冠竞争情况，并采用等树冠投影面积法把树冠分为5级，这样计算的树冠叠加指数更加与现实林分相符。6、本研究基于乘除法的思想，用多样性混交度、聚集指数、竞争指数和树冠叠加指数构建了天然次生林择伐空间优化模型，设计了10个与林学意义相一致的约束条件，并采用0-1整数规划的思路，在LINGO9.0软件中使用了隐枚举法对目标函数求得最优解。7、以M702标准地为应用实例，具体计算出了每株采伐木，经过择伐后，目标函数值按模型设计的要求发生了极大的改变，增加了5倍多，说明了最后这个解的优良性，满足了设计的要求。

Through pure research into stratified terrestrial stress, it is gotten the stratified earth stress calculation model, and further research determines the basic procedure and method on earth stress delaminating.

通过分层地应力计算的理论研究，得出了地应力分层计算模式，并对地应力分层进行了研究，确定了地应力分层的基本步骤和方法。

Based on rock mechanics test demarcates the rock mechanics of logging calculating and founding the rock mechanics parameters section. All which will offer the lithology and rock mechanics parameters about bit selection、crustal stress and stratum pressure.

基于岩石力学实验&刻度与标定&测井计算的岩石力学参数，建立工区岩石力学特性剖面，为钻头选型、地应力和地层压力计算提供了可靠的岩性、岩石力学依据。

For the paralleling computation of simulation this paper gives the method to do it on the cluster system.

在微观仿真自身的并行计算方面，本文提出了在计算机集群系统上开展城市交通微观仿真并行计算的思想。

The using of digital signal processor improves the precision of calculation, speeds the calculation process and predigests the circuit itself.

数字信号处理器的使用，既提高了计算的精度，加快了计算速度，还使电路本身得以简化。

Through an experimental model, the whole of the design and the calculation of tensioned membrane structures is introduced, and the software developed by the authors research group is described.

本文以一实验模型为例，介绍了张拉膜结构设计计算的整个过程和作者参与开发的设计计算软

It's a matter of days, it is not a matter of weeks.

这是以天计算的，而不是以周计算的。

Simulated the backlash process of cannon barrel, advanced a new algorithm for the computation of muzzle brake efficiency.

本文用数值计算的方法模拟火炮身管自由后坐过程，给出了一种新的炮口制退器效率计算方法。

The ideas of object-oriented technology and parametric design computation are combined to construct this parametric design system of overhead crane based on object-oriented technology. The corresponding technology are fully used to design and compute partial mechanism of overhead crane. This system makes the devisers design convenient and design period is shortened, and in the meantime work efficiency is improved.

基于面向对象技术的起重机参数化设计系统结合面向对象技术和参数化设计计算的思想，充分利用各相关技术，对桥式起重机部分机构进行设计计算，方便设计人员设计，缩短了设计周期，提高了工作效率。

RESULTS:The concentration-time curves of two preparations fitt ed to a one-compartment model.The peak plasma levelsof ambroxol test drug and reference drug were(385.5±98.3)and(378.9±90.3)μg .

结果：经3p97计算程序拟合，两者在体内的过程皆符合血管外给药一室模型，采用梯形法计算的两者AUC0-t均值分别为(2421.2±761.3)μg 。

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。