查询词典 double-decked

However, the trade-off between extra computational effort with respect to increased population size is a problem specific decision to be ascertained by the modeller, as doubling the population size will approximately double the solution time for the same number of generations.

但是，权衡额外的计算方面的努力，增加人口规模是一个问题的具体决定，确定了建模，作为增加一倍的人口规模将约增加一倍，解决的时间相同数量的后代。

First of all,by use of the modern differential geometry and the double complex functionmethod,the definitions of dual and self-dual operators as well as ordinarycomplex Ashtekar connections are extended into parametric forms.

首先利用现代微分几何和二重复函数方法将对偶，自对偶算符的定义以及普通复阿西特卡联络推广为参数化形式。

The research result shows that the flowability, moldability, cohesiveness of high performance concrete of hill sand are significant by comparison with ordinary concrete on mechanical properties, long term properties, and durability. Motar flowability decreases with the increase of single-mixed active additive. The flowability can be largely improved by double mixing of active additive and super plasticizer NF. This is because not only the active additive has filling effect but also the dispersing effect induced by surface action between additive and super plasticizer NF. And the optimal content of materials are: super plasticizer NF≥0.8%, fly ash 20%, PS 20~30%,zeolite powder≤20%,SF 5~8%; The negative influence of hill sand powder should be avoided by controlling of powder content and the use of active additive and super

研究表明：随着单掺活性掺合料掺量的增加，砂浆流动性减小，活性掺合料与萘系高效减水剂NF双掺使用，比使用同样剂量萘系高效减水剂NF的基准浆体流动性明显增大，这是由于玻璃体材质活性掺合料不仅有填充效应，更主要的是它与高效减水剂之间的表面物化作用产生了分散性，而活性掺合料对浆体的流化作用效果主要是依赖于其分散性；能有效改善胶砂流动性的适宜掺量为：萘系高效减水剂不小于0.8%，粉煤灰掺量为20%，PS掺量为20~30%，沸石矿粉掺量不宜大于20%，SF掺量为5~8%；通过对粉末含量的限制，并借助活性掺合料、高效减水剂的合理使用，就可以避免山砂粉末含量的负面影响，配制出密实度高，抗渗性能优异，具有良好的耐久性能，并具有良好的体积稳定性的山砂高性能混凝土。

A plow equipped with a double moldboard that turns up the soil on each side of the furrow, often having an attached drill for seed planting.

双壁开沟犁犁头后部有两块曲面铁板的犁，可翻开犁沟两边的泥土，常附有播种机注意，注意力集中

A plow equipped with a double moldboard that turns up the soil on each side of the furrow,often having an attached drill for seed planting.

双壁开沟犁犁头后部有两块曲面铁板的犁，可翻开犁沟两边的泥土，常附有播种机那个农民将牛缚在犁上，用刺棒驱赶它们。

A plow equipped with a double moldboard that turns up the soil on each side of the furrow ,often having an attached drill for seed planting.

双壁开沟犁犁头后部有两块曲面铁板的犁，可翻开犁沟两边的泥土，常附有播种机

It consists of standard sources integrated sphere,double grating monochromator ,detectors ,and electronics-microcomputer system.

它由标准光源，积分球，双光栅单色仪，探测器及电子学—计算机系统组成。

The article introduces the principle of the double-pass monochromator and its application in high performance optical spectrum analyzer to achieve high dynamic range and low polarization sensitivity measurement.

主要讲述了双通单色仪的工作原理，以及它在高性能光谱分析仪中的应用。

So, this project adopts the realization scheme of double-pass raster monochromator plus direct drive and direct reading of the raster's angle position to control.

因此，本设计采用双通光栅单色仪加直接驱动直接读取光栅角位置控制的实现方案。

Then, we set up the double-row monodromy matrix of the Hamiltonian, the transfer matrix and the reflection equation of the system with the help of the scattering matrix and the reflecting matrix.

接着借助量子反散射方法，运用两体散射矩阵和反射矩阵，构造了双行monodromy矩阵、转移矩阵和系统的边界反射方程，从而详细证明了系统的精确可解性。

Wenxing consistently adheres to the principle of "trict Management,All Member Participation,Quality First,Users Foremost" and follows the business philosophy of excellent quality,highly active and pursue excellence,thus outdoing its counterparts in terms of technology,production scale and administration.

文兴一贯秉承&严格管理、全员参与、质量第一、用户至上&的企业方针，遵循优质、高效和追求卓越的经营理念，从而实现在技术上、规模上、管理上处于同行领先地位。

The left atrium of the guinea pigs was innervated by the two afferent system.

豚鼠左心房受心脏的两个传入系统的双重支配。