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- The elastic moduli Eijlm represents a tensor of the fourth order. 弹性模数Eijlm表示一个四阶张量。
- Concretely,the fourth order squeezing of the light field iis studied in detail. 我们详细研究了量子光场的四阶压缩特性,给出了四阶压缩的条件。
- The non-isothermal degradation was found to be first order reaction. 研究发现热分解过程为一级反应。
- The chain consists of a dual-mode,highly linear,fourth order Chebyshev active RC filter and three VGA stages. 基带由双模的高线性度的四阶切比雪夫形式的有源RC低通滤波器以及三级可变增益放大器构成。
- The decomposition of a radioactive element is the simplest example of a true first order reaction. 放射性元素的衰变是真正一级反应最简单的实例。
- The scattering of time-domain pulse by the ionosphere was calculated using a fourth order (FD)2TD scheme. 采用具有四阶精度的时域有限差分法计算了电离层对时域脉冲的散射，然后应用小波变换求出了反射信号的时频分布。
- The initial boundary value problem of fourth order wave equation with dispersive and dissipative terms is studied. 摘要研究具色散和耗散项的四阶波动方程的初边值问题。
- It reduces the problem of solving double harmonic equation to the problem of solving the fourth order Euler equation by applying transformation. 这种方法是用变换将解重调和方程问题化简为解四阶欧拉方程问题
- The cis-trans isomerization reaction has been shown to be a first order reaction with an activation energy of 19 kcal/mole. 顺-反异构化反应系属一极反应,反应活化能为19千卡/克分子。
- On those points of fourth order lead which can not receiver the GPS signal, Leica TC1800 was used and achieved precision requirement. 在无法接收GPS信号的四等导线点按照常规方法利用TC1800测量，达到设计精度要求。
- The degradation kinetics of phenol in RFFS followed apparent first order reaction kinetic model. 苯酚在RFFS中的降解动力学符合表观一级动力学模型，理论值与实验结果吻合较好。
- This paper considers the finite difference method for a class of generalized fourth order dispersive and dissipative wave equation. 摘要研究了一类四阶非线性耗散、色散波动方程初边值问题的有限差分解法。
- The flotation and flocculation flotationof fine wolframine accord with the 2nd order reaction equation a... 细粒黑钨矿的浮选和絮团浮选符合二级反应方程，絮团浮选显著提高了细粒黑钨矿的浮选速率。
- We also extrapolate the expansion arid enhance the accuracy of the eigenvalue from the second order to the fourth order. 然后对误差展开式外推，收敛阶数可以从二阶提高到四阶，得到了高精度的解。
- The results show that their photolysis kinetics follows the first order reaction. 利用稳态光解法研究了其不同条件下的光解动力学，符合一级反应。
- Using the fourth order Runge-Kutta method, the equation of disorderly coupled pendulums with different simple pendulums is calculated. 摘要利用龙格-库塔法求解了不同单摆构成的耦合摆的运动方程，分析了由两个不同质量的小球组合的耦合摆的运动情况；
- Both the disappearance dynamic of 14C in waters and the accumulation dynamic in hornwort followed the first order reaction kinetics model. 水体中14C的消失动态和金鱼藻对14C的积累动态均遵循一级反应动力学模型;
- With flexible definition of fourth order cumulant of the array output signal, the spectral peak searching is not necessary for the new separable approach. 通过巧妙定义阵列输出四阶累积量矩阵,该方法不需要谱峰搜索就可以估计信号二维到达方向。
- The 'reaction of (he spontaneous polymerisation of soluble silicic acid to form colloidal silicic acid was determined to be a second order reaction. 测得可溶硅酸聚合为胶体硅酸的反应是二级反应。
- Time is sometimes called the fourth dimension. 时间有时被称为第四度空间。
