变化点

Time results could be concluded as follows: 1 During the sunshine period, the vertical distribution of external surface temperature on different orientations of buildings differs from one another, and the max discrepancy of vertical temperature appears on the external surface of west oriented wall, whose max differences of the vertical temperature are above 2℃ and the standard deviation of the temperature is above 0.6℃; 2 Most of the time from 2 p.m.

通过一段时间内对某栋典型多层板楼建筑外微气候相关参数的监测，其如下：1）在太阳强辐射时间内，不同朝向的外墙外表面温度随高度分布的情况不同，西向外墙表面温度随高度变化幅度最大，其外表面垂直温度的最大温差一般可在2℃以上，标准偏差约在0.6℃以上；2）多数时间内（主要为下午2点左右至次日凌晨），西墙外表面温度以1层最高；3）建筑热外表面可产生诱导上升热气流。

4A new method to detect the ovalbumin was set based on the PL change.

4基于CdTe量子点荧光光谱的变化建立了一种可用于卵清蛋白检测的新方法。

This article mainly focuses on the rule of variation of vertical seismic ground field and the theory of multi-support response spectrum. The seismic response of Beijing AMECO hangar located at Beijing International Airport and cover sail of palaestra located in Harbin Institute of Technology are calculated by using multi-support response spectrum method.

本文围绕这一课题重点研究了竖向地震动场的空间变化规律以及多点输入反应谱法计算理论，并用所提出的方法对首都机场四机位维修机库（网架结构，简称AMECO）和哈尔滨工业大学体育场罩篷进行了计算分析。

A value of the curve parameter where the polynomial definition of the b-spline changes.

节点节点是b样条发生变化处的多项式定义点的曲线参数的值。

In this case, it is most parsimonious to say that x is ancestral and that y was derived , or evolved by B at point c – one step of evolutionary change.

在这种情况下，最俭省的就是x是祖传的并且y是演化的或者B在c点进化得到的--一步进化变化。

There are many ways to calculate GPS satellite azimuth and elevation, but the precision is low. A new method to decide GPS satellite position using the broadcast ephemeris is presented, the way to checkup the precision is also given, and some research are made to analysis the error feature of the position which is calculated by the broadcast ephemeris as well, the results show the error is periodic.

GPS卫星高度角、方位角计算方法众多，但精度低；针对这点，提出了一种利用广播星历计算卫星高度角、方位角的方法，对该方法能够达到的精度提出了鉴定的途径，并分析了利用广播星历计算卫星高度角以及方位角的误差特点，结果表明利用广播星历计算的卫星高度角、方位角呈现出周期性变化的规律。

A new method to decide GPS satellite position using the broadcast ephemeris is presented, the way to checkup the precision is also given, and some research are made to analysis the error feature of the position which is calculated hy the broadcast ephemeris as well, the results show the error is periodic.

GPS卫星高度角、方位角计算方法众多，但精度低；针对这点，提出了一种利用广播星历计算卫星高度角、方位角的方法，对该方法能够达到的精度提出了鉴定的途径，并分析了利用广播星历计算卫星高度角以及方位角的误差特点，结果表明利用广播星历计算的卫星高度角、方位角呈现出周期性变化的规律。

At last,simulation research is carried out on radar echo of two same frequency vibration scatter points.Theoretical annlysis and simulation result indicate that the model is effective and that the periodicity of amplitude modulation function and phase modulation function is invariable as the number of scatter points increased,but,their amplitudes are variational.

最后对两个同频振动散射点合成雷达回波进行了计算机仿真研究，理论分析和仿真结果表明，该模型是有效的，并且随着同频振动散射点数的增加，其幅度调制函数和相位调制函数的周期性不发生变化，只是它们的值会随着振动点数的增加而改变。

Through the Lagrange's equation,the nonlinear vibration equation of a particle non-harmonic oscillator is established;the curves of the restoring force and potential energy varying with coordinates and phase plot are drawn.

利用拉格朗日方程建立了单质点弹簧振子非线性振动方程，作出了回复力、势能随坐标的变化曲线以及相图。应用第一类完全椭圆积分求出了非线性振动周期的精确解。

BACKGROUND AND AIM: To study the changes of peroxisome proliferator-activated receptor γ expressions at different time points in rat lung after phosgene exposure and explore the role of PPAR-γ in this pathogenesis. MATERIALS AND METHODS: 60 male rats were randomly divided into 6 groups with 10 in each group.

背景与目的：研究大鼠经光气染毒后，不同时间点肺组织中过氧化物酶体增殖体激活受体γ的表达变化，以探讨PPAR-γ在光气致大鼠急性肺损伤中的作用。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。