它的实质是以轨道要素的平均变化率为基础的微分方程，而方程的右端包含定积分。
The essence of this method is a group of differential equations based on the average change rate of orbit elements, and the right sides of these equations contain definite integrals.
结果：缺损面积在心动周期的收缩变化显著，变化率从15.2%到76。 9%，平均变化率为49。 0%。
Results: Defect area changed significantly through the cardiac cycle, mean change 49.0%, range from 15.2% to 76.9%.
通过衡量“冷静”程度，“微博客宇宙”可以根据某天的冷静值预测三天后的道琼斯工业平均指数的变化方向，其准确率达到了86.7%。
Measuring how calm the Twitterverse is on a given day can foretell the direction of changes to the Dow Jones Industrial Average three days later with an accuracy of 86.7 percent.
较低的平均失业率掩盖了一些急剧的变化。
食物链等级体系中的高等级物种平均捕获率(而捕获正在并将持续进行)处于持续上升态势之中——按照所谓食物链等级理论，这应当意味着海洋生态系统的健康平衡发生了变化。
The average trophic level of what is being caught is rising — and this in principle should indicate improving ecosystem health.
监测上海市虹口区婴儿死亡的变化趋势，观察婴儿死亡率对平均期望寿命的影响，并采取相应措施降低婴儿死亡率。
To monitor the changing trend of infant mortality rate (IMR) in Hongkou district Shanghai, observe how IMR affected average life expectancy, in order to take proper measures to reduce the rate.
通过用该方法对铀尾矿库现场连续一年的监测，观测了铀尾矿库年氡析出率的变化规律，总结出年平均氡析出率的最佳测量季节和测量条件。
The annual change regularity of radon release rate from uranium tailings was observed. The optimum season and condition of monitoring the annual average radon release rate are summarized.
小梁干缩应变、平均干缩系数随失水率、集料级配的变化规律。
Along with percentage of water loss and aggregate grade, the laws of small beam dry shrinkage strain and average dry shrinkage index.
通过调整超结构光栅各参数诸如：光栅长度、折射率平均变化量、变迹函数等，从而可获得理想的反射谱特性。
Through adjusting involved parameters such as wavelength, refractive index average variation value, anodized function, ideal spectral characterizations are obtained.
该算法的交叉率随种群中的最大适应度值和每代种群的平均适应度值的变化而自动改变；变异率随适应度值和进化代数的变化而自动调节。
It applies adaptive crossover rate, which is changed with the maximum colony adaptation degree and the average colony adaptation degree of each generation.
第一，原子平均激发能量变化率是原子到板的距离的函数，并且当靠近板时以振荡行为消失。
First, the rate of change of the mean atomic excitation energy is now a function of the distance to the boundary and it dies off in an oscillatory way the boundary is approached.
本行业的平均利润率以及未来三年的变化（增加或减少）情况？
What are average profit margins in this industry, and how are they expected to change in the next 3 years?
如果把瞬时频率作适当的非线性变化，就可以得到一个以地层衰减率的倒数的平均值为输入的频谱。
If a proper non - linear change of the instantaneous frequency is realized, we can get a frequency spectrum whose input is the mean of the reciprocals of bed attenuation coefficients.
四探针法测量了薄膜电性能，薄膜电阻率平均变化达到103，比理论上只相差一个数量级；
The ratio of resistance change is tested using Four Probes Method. The average change reaches 103, and is near to 104 of the theory estimation.
观察钉螺孳生面积、活螺平均密度及人畜感染率变化情况，并与对照组（龙湾镇竺场村）比较。
The snail habitat area, mean density of living snails and prevalence of schistosomiasis in human and cattle were compared with those of the control villages.
平均PAR透光率日变化表现为早晚较低，中午较高；
The diurnal variation of average PAR transmittance was greater at noon than in the morning and afternoon.
分析结果表明中国可转换债券市场的平均价值低估率为11.06%，并且价值低估情况的总的变化趋势基本与股市走势一致。
The empirical analysis shows that the sample has an average underpricing of 11.06%. In addition, the general trend of underpricing is in line with the trend of stock market.
分别计算3块试件纵向或横向的尺寸变化率的平均值作为纵向或横向试验结果。
Take the mean value of dimensional change rate of the 3 test pieces in longitudinal or transverse directions as the test result.
应用二维场量分布进一步得到了平均磁流阻率随电流密度和温度的变化特性。
The average flux-flow resistivity depending on the average current density and temperature is also calculated with above distributions.
统计资料表明，喇嘛甸油田各类油层，长期注水冲刷后，孔隙度值略有增加，但变化率不大，平均只有0.58%。
Statistic data shows that the porosity increased a little with 0.58% of the average change rate after long-term water flooding in every-type of oil-bearing reservoirs in Lamadian oilfield.
计算历史时期海岸线变化率常用的数学方法有端点法、平均速率法、线性回归法和折剪法。
The commonly used methods for calculating the shoreline change rate based on the coastal evolution history include end point method, average the method, linear regression method and jackknife method.
理论分析发现，随着过采样率的增加，采样点之间相关性上升，新增加采样点对信号峰值平均功率比的影响下降，系统峰值平均功率比的变化缓慢并趋于稳定。
We can find that correlation value between sampled points ascends and the influence that the new sampled point acts on PAPR decreases with the increase of the oversampling rate.
采用一个随栅压变化的平均电容公式，并用一个简单的解析表达式来描述沟道平均迁移率随栅压的变化关系。
The drain current model is simplified by an average capacitance formula and a simple expression of channel average mobility with gate voltage.
分析了应力变化对人为差错率的影响 ，研究了变应力条件下人为差错率、人为差错前平均时间及人的工效可靠度三者间的关系 。
This article analyzes reliable factors which influence people, puts forward the means and measures that can improve peoples reliability and reduce the man-made errors.
观察患者死亡率、平均住院日、体温、动脉血气分析、白细胞计数的变化等。
The clinical situation of patients before and after treatment, mortality rate, hospital days, the leukocyte count, body temperature, arterial blood gas analysis were observed.
观察患者死亡率、平均住院日、体温、动脉血气分析、白细胞计数的变化等。
The clinical situation of patients before and after treatment, mortality rate, hospital days, the leukocyte count, body temperature, arterial blood gas analysis were observed.
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