查询词典 optimal

The experimental result shows that the main determinative factor is the temperature of the sea water for the growth after the transplantation; the optimal temperature for the growth of Zostera marina L. is 10~20℃; it is strongly salt-tolerant and it can grow at the salinity range of 20‰~48‰ normally; its rhizome is the optimal organ for culturing and the optimal hormone concentration for the calluses induction is 2mg/L or so.

实验结果表明，大叶藻移植后生长的主要制约因素是海水温度；大叶藻生长的最适温度是10～20℃；大叶藻对盐度的耐受性很强，它可以在盐度为20‰～48‰的范围内正常生长；地下茎是组织培养的最适材料；诱导愈伤组织的最适激素(2，4-D)浓度为2mg/L。

The results showed that MS medium was the optimal basic culture medium; the regeneration frequency of leaf was the highest , then etiolated internode, internode was the lowest , their highest regeneration frequencies were 74.1%, 51.9%, 42.6%, respectively. The optimal dark treatment time for leaf and internode was 3 weeks; however the optimal dark treatment time for etiolated internodes was 2 weeks.

结果表明3种外植体的最适基本培养基均为MS培养基；叶片的再生效果最好，其次为黄化茎段，茎段最差，最高再生频率分别为74.1%，51.9%，42.6%；叶片和茎段的最佳暗处理时间为3周，黄化茎段的最佳暗处理时间为2周。

The results showed the optimal conditions of pectinase hydrolysis are amount of pectinase 0.127%,temperature 45.5 ℃,and time 3.3 h; The optimal technological parameters of alcoholic fermentation are amount of yeast 3%,temperature 28 ℃,and initial sugar content 16%; The optimal technological parameters of acetic fermentation are amount vinegar agarics 8%,temperature 32.5℃,...

以锦橙为原料研制锦橙果醋，并对锦橙果醋的酿造工艺参数等进行研究，研究结果表明，果胶酶水解的最佳条件为：加酶量0.127%、温度45.5℃、时间3.3h；酒精发酵的最优条件为：酵母接种量3%、温度28℃、初始糖度16%；醋酸发酵的最优条件为：醋母接种量8%、温度32.5℃、酒精度7%；澄清效果以壳聚糖添加量0.05%时为佳。

The algorithm firstly uses some robust techniques to construct an inliers set of matching points. Then it takes the epipolar distance as the optimal criterion and search optimal subset in the inliers set under the greedy strategy. Finally, the fundamental matrix is calculated with the optimal subset.

利用各种鲁棒技术获得内点集，以点到极线的距离作为最优量度标准，采用贪心策略在内点集中寻找最优子集，并利用最优子集来计算基本矩阵。

By the modem time series analysis method, based on the ARMA innovation model, under the linear minimum variance optimal information fusion criterion, three distributed fusion steady-state optimal Kalman filters, predictors and smoothers weighted by matrices, scalars, and diagonal matrices are presented for multisensor systems with correlated input and observation noises, and with correlated observation noises. The Lyapunov equations and formulas of computing local filtering, predicting and smoothing error variances and covariances are given, which are applied to compute optimal weights. The corresponding three distributed fusion Wiener state estimators are also presented.

应用现代时间序列分析方法，基于自回归滑动平均新息模型，在线性最小方差最优信息融合准则下，对于带相关输入噪声和观测噪声和带相关的观测噪声的多传感器系统，提出了按矩阵加权、按标量加权和按对角阵加权的三种分布式融合稳态Kalman滤波器、预报器和平滑器，其中提出了局部滤波、预报和平滑估值误差方差阵和协方差阵的Lyapunov方程和计算公式，它们被用于计算最优加权，也提出了相应的三种分布式融合Wiener状念估值器。

In the non dimensioned time domain,the generalized quadratic performance criterion of error state transits into the optimal problem of structural parameters,thus gets an optimal parameter system—optimal damping control system with big margin for stability,little number for oscillation,small overshoot,and small setting time.

在无量纲时域中，把状态误差的广义二次型性能指标转换成结构参数的优化问题，从而得到一种稳定裕度大、振荡次数少、超调小、调节时间短的最佳参数系统——最佳阻尼控制系统。

While researching the optimal operation of hydropower station, it is essential toconsider the optimization of operating efficiency, vibration characteristics of unit andthe safety of electric power system meanwhile. The researches of optimal operation ofLijiaxia Hydropower Station of two-row placed units are as follows: 1. Summarizes the operation experience of Lijiaxia Hydropower Station in recentyears, analyses the demands to the operation of station, provides the problems existedand the research direction of optimal operation.

在电站的运行优化研究同时考虑电站的运行效率的优化、运行状态的优化和电网安全问题是必要的，针对李家峡双排机的水电站的优化运行问题开展以下几方面的研究：(1)总结近几年来李家峡电站的运行经验，分析电网对李家峡电站运行的要求，提出了运行存在的问题和优化运行的研究方向。

In order to evaluate the solution quality obtained by algorithm SB and compare its resulting backbone set with the optimal one, we devise an algorithm OOB (standing for Obtaining Optimal Backbones) to obtain the optimal solution.

为了评估演算法SB所得到的结果，我们设计了一个演算法OOB（全名为Obtaining Optimal Backbones）来得到最佳解。

The key to feature extraction is to select the optimal feature combination from all the features. In this study, the optimal color feature combination,{/G,(R+4G+B)/6, H variance, S variance}, is selected using genetic neural network at first. Then the main texture features including the mean, variance, energy and entropy of the cooccurrence matrix, the secondary texture features including the maximum frequency number, absolute uniform, inertia and importance of the co-occurrence matrix are extracted.

在此基础上，提出适合多阈值和小目标图像分割的免疫遗传图像分割方法，该方法借鉴了生物免疫系统自调节、抗原识别和记忆功能，并结合了遗传算法对图像进行自适应区域的阈值分割，改善了遗传算法优化复杂问题时存在收敛速度慢和易陷于局部最优的不足，克服了传统阈值分割方法对目标大小的限制，是一种新型的有效的图像分割方法。

Based on the optimal data partitioning algorithm, only the accumulated error from the past frames is taken into account, and the complexity and performance of the causal optimal data partitioning algorithm are studied.

在最优数据划分算法的基础上，仅考虑过去帧的积累误差，不考虑误差对将来帧的影响，探讨了因果最优数据划分算法的复杂度及性能。

In the days of sailing vessels the crew were afraid they would be becalmed on the ocean.

在使用帆船的时代，船员们担心他们会因为无风而无法在海洋上航行。

As long as foreign donors pay the PA's salary bill, few expect a new intifada.

只要外国继续为巴权力机构的薪水买单，希望发动新暴动的人便寥寥无几。