结构段

Due to forward-bias-induced annealing effects,the laser diode biased during irradiation is less degraded than that short-circuited,and annealing curves can be fitted sectionally with different annealing rates.

激光二极管辐射损伤存在着正向偏置退火效应，FP和DFB结构的二极管具有相似的加电退火规律，均可拟合成指数衰减形式，退火曲线可以分成退火常数不同的几段进行拟合。

The arcs which are joined in the same node are ordered by means of bina sorting tree, and the minimal polygons are built by the right sequence of arcs, then polygon overlaying is finished.

通过在无拓扑矢量数据中局部引入拓扑关系，对同一结点连接的弧段，采用二叉树方法进行排序，构建最小多边形，完成无拓扑信息的矢量图形的重组，并对新算法与已有算法的结构进行了对比。

Local topological information is imported to the altered polygon in this new algorithm.The arcs which are joined in the same node are ordered by means of bina sorting tree,and the minimal polygons are built by the right sequence of arcs,then polygon overlaying is finished.

通过在无拓扑矢量数据中局部引入拓扑关系，对同一结点连接的弧段，采用二叉树方法进行排序，构建最小多边形，完成无拓扑信息的矢量图形的重组，并对新算法与已有算法的结构进行了对比。

Plastic should lower 3 steps, because plastic is a step to add meltresin material to cyclinder , Higher stick of resin material ,higher screwback pressure. Screw speed differs depending on decomposing temperatureof resin material ,Higher screw speed ,Higher trim force of resin,higher cyclinder temperature. Some resin material may decomposes so it setscrew speed in mid-speed such as 45-75%, In plastic step setting screwback pressure is very important, Higher screw back pressure ,higherquality of product screw back pressure make resin structure order, Moldingproduct is beautiful and volume stable. But ,it maybe flow if screw

再复杂的熔胶旋转过程最多不会超过三段，因为熔胶本身就是存在于把胶熔进料筒的过程，如果原料粘度大，熔胶压力则大，但速度则应取决于原料的分解温度，熔胶速度越快，原料中的剪切力则会越大，料管温度则越高，局部原料产生分解的可能性则会越大，故一般熔胶会采用中速为宜，如45%-75%，熔胶同时会碰到一个比较重要的环节，那就是背压的使用，产品精度要求越大，背压的使用则更大，背压可使原料分子间结构更紧密，成型出的产品则尺寸更稳定，外观越好。

Using the bond-fluctuation-model and vacancy-diffusion-algorithm,the microphase structure, segment profile and structure factor of molten symmetrical AB diblock copolymer confined between two impermeable plate surfaces are simulated by Monte Carlo method based on simple cubic lattice.

采用改进的键长涨落空穴扩散算法对平板狭缝中的对称两嵌段共聚高分子熔体的微相分离形态、密度分布以及结构因子进行了MonteCarlo模拟。

Snaky well is a new type of complex well.

蛇曲井是一种新的复杂结构井，其生产井段起伏较大，不能直接用常规水平井产能公式计算其产能。

The present results suggest CGRP and SP may participate in transmission of nociceptive message among human cervical spinal column.

CGRP和SP可能参与了人颈段脊柱结构的伤害性感觉信息的传递。

However, the structure of the overlapping spinous processes, resulting in interlaminar space occlusion, often makes thoracic epidural needle placement difficult.

然而，重叠交错的棘突结构使得椎板间空间闭合，常常导致胸段硬膜外穿刺置针困难。

According to structural characteristics of floating slab tracks, a track segment element was taken between two adjacent fasteners. For each element, rails were regarded as Euler beams supported by discrete viscoelastic supports. The fasteners and rubber supports were replaced by a linear spring and damp. So the vibration model of the floating slab track was established. In constructing vibration model of a metro train, each car of the metro train with two suspensions was modeled as a multi-rigid body system, in which rigid bodies were connected with each other by a linear spring and damp. Combining the potential energy of vertical vibration of the track with that of the metro train, the total potential energy of vertical vibration of the train and track was obtained. And then, the matrix equation of vertical vibration of the system was established using the principle of total potential energy with stationary value in elastic system dynamics and the "set-in-right-position" rule for formulating system matrices. The vibration responses of the system can be obtained by solving the matrix equation with the direct time integration such as Wilson-θ method.

摘 要：针对浮置板式轨道结构特点，取相邻2个扣件之间的轨道为1个轨段单元，钢轨视为连续弹性点支承Euler梁，浮置板视为弹性薄板，扣件系统及橡胶支座均模拟为线性弹簧及粘滞阻尼器，建立浮置板式轨道振动模型；将城轨列车中的车辆均离散为多刚体系统，各刚体之间通过线性弹簧及粘滞阻尼器相连，建立列车振动模型；将浮置板式轨道及列车振动势能叠加，得到系统竖向振动总势能；基于弹性系统动力学总势能不变值原理及形成系统矩阵的"对号入座"法则，建立此系统竖向振动矩阵方程；采用Wilson-θ逐步积分法求解此矩阵方程，得出此系统竖向振动响应。

The economic growth coefficient and the largest shortfall of coal demand were predicted and estimated by the estimation method for statistical test.

能源结构的调整和优化是当前及未来相当长一段时期内我国能源战略的核心。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失