一阶

Based on Noblesse s Slender Ship Theory, where the variables are separate by expanding exponential function, the wave resistance formulae of a trimaran are obtained.

为快速优化三体船的片体位置，基于Noblesse细长体理论，按照一阶Kochin函数的表达式，在指数函数展开分离变量方法的基础上，本文推导了三体船兴波阻力的计算公式，并根据这些公式实现了三体船兴波阻力的快速计算。

Efficient method was also taken up with for controlling and mitigating methane emissions from paddy fields.In summary, this study showed the feasibility of using new multi-temporal microwaveRadar ALOS data acquired in key dates during rice growing season to extract paddy ricegrowing area was tested. A modified rice backscatter model was developed on the basis oforiginal radiation transfer model for simulating paddy rice backscattering characeteristics. Themodified model and Genetic Algorithm Optimization Tool were synergized to reversephysical parameters and map rice biomass at spatial scale in the study area. At last, on thebasis of paddy rice planting area and farming practice data, biogeochemical DNDC modelwas utilized to simulate quantitatively estimating methane (CH_4) emission from paddy fieldsand represented some specific mitigation scheme.

综上所述，本研究在以下几方面取得了进展：验证了在水稻主要生长期内获得的多时相ALOS／PALSAR雷达数据提取种植面积的实用性；在原有辐射传输模型基础上进行改进，得到了适用于模拟水稻后向散射系数的一阶散射模型；利用改进的模型和遗传算法优化工具进行水稻结构参数反演，并对研究区开展水稻生物量空间分布制图和估算；利用DNDC模型模拟和定量估算稻田CH_4的排放量，进而提出了具体减排耕作措施。

Seasonal AR(1) models are first used to generate a great number of reservoir inflow flood. Next the triangle distribution and the normal distribution are applied to describe the uncertainty of spillways capacity.

应用一阶季节性自回归模型对入库洪水进行模拟，应用三角分布和正态分布描述水力不确定性对泄洪能力的影响，给定调洪起始水位和调洪规则，经过水库调洪演算，得到水库最高调洪水位随机分布和洪水漫顶风险率。

In this paper, choosing submerged spheroids and Wigley hulls as computing models, the computed wave resistance and first-order wave exciting force are in good agreement with the other published results.

并将兴波阻力系数、一阶波浪扰动力的计算结果与试验结果和他人的计算结果进行了比较，吻合程度较好。

The first order statistical properties of the ultrasonic speckles reflected from an interface is analyzed theoretically and experi mentally.

对界面反射超声散斑场的一阶统计特性进行了理论和实验分析。

This method can be applied to any thermodynamic model, including activity coefficient model and EOS model, and this work extends phase analysis from liquid-liquid phase splitting to liquid-liquid-vapor phase splitting.

经多个实例的测试表明，LCPSO适用面广，既可用于超额自由能、状态方程等各类热力学模型，又能克服混合模型一阶不连续的困难，应用范围从液液相分裂拓展到汽液液相分裂。

In rebidding, after having opened in a minor suit

当再叫时，在开叫一阶低花之后

A quantum confinement model is used to explain the experimental results of the first order optical phonon mode.

采用一个量子限制效应模型来解释纳米硅线的一阶光学声子的实验结果。

Starting from the basic governing equations of axisymmetric Biot's consolidation of saturated transversely isotropic soils, and taking Laplace transform with respect to time t and Hankel transform with respect to r, the first order ordinary differential equations in term of z are obtained.

从横观各向同性地基轴对称Biot固结的基本方程出发，通过关于t的Laplace变换和关于r的Hankel变换，得到关于z的一阶常微分方程组。

The steady and 1st order velocity dependent vector solutions of forces for two level atom are obtained. The solutions are applied to TEM01 laser beam and analysis shows that it exists vortex force acting on the atom.

推导了两能级原子在稳态和小速度一阶微扰近似下的受力矢量方程，并分析表明TEM*01模光场对原子的作用力中存在旋涡力。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。