对于作物生长的模拟，选用了ORYZA水稻生长模型，并结合田间实验修改了其中一些参数。
In simulating crop growth, ORYZA rice-growth model was selected and some parameters were modified by field experiment.
温室环境参数的调节与控制是保证作物高产、稳产和提高经济效益的前提。
The regulation and control of greenhouse environment parameters is a premise which can guarantee the crops to get high and stable productions and improve economic benefits.
而根的长度是根型的主要参数，对于养分的吸收，耐旱和作物的产量都有重要的作用。
The root length is main parameter of root architecture with various important functions such as nutrient uptake, drought tolerance and yield.
在作物水模型及作物水盐响应相关研究中，目前多采用最小二乘法进行参数寻优，动态规划法对系统进行优化。
At present, usually parameters and systems have been optimized by least square techniques and dynamic programming in the research of crop water model and crop response to water and salt.
作物系数是计算作物需水量必不可少的参数。
Crop coefficient is the basic parameter for determining crop water requirement.
作物母体效应(M)是作物遗传育种中一重要参数。采用正反交f 1性状差异，测定出母体效应方差。
Crop maternal effect (m) is an important parameter in crop heredity and breeding, and can be determined from the difference between reciprocal crosses in F1 generation.
叶面积指数(LAI)是估算作物生长的关键参数。
Leaf area index (LAI) is an essential parameter for monitoring crop growth dynamic.
结果表明，影响最大的参数为温室覆盖材料对太阳辐射和热辐射的透射率以及作物占温室土壤表面积的比例。
The results show that the solar and thermal infrared transmittance of the cover and the proportion of soil surface occupied by vegeta (?) appear as the most influential parameters.
并利用随机参数L系统方法对豆科作物根系的生长过程进行了模拟。
Soybean roots system growth was simulated and visualized with the help of the stochastic and parametric Lsystem method.
为了使作物生长模型中的参数最优化，提出了一种改进型非线性最小二乘法在作物生长模型中隐含参数估计的应用技术，针对多目标项的情况提出了权矩阵的自动计算方法。
In order to optimize the parameters in a crop growth simulation model, a new method based on nonlinear least squares method was developed for estimation of hidden parameters of crop growth.
新方法确定的喷洒参数提高了喷洒效果，图像中作物和杂草分布越复杂喷洒效果的改善程度越显著。
The spraying parameters of new method improve the spraying efficiency, and the improving efficiency is more prominent for complex weed image.
研究结果为用计算机进行作物生长监测提供了理论基础和实用模型，并为农业科研中作物生长参数的测量提供了快速、便捷的方法。
It is an accurate, convenient, clipping method to measure the feature parameters of growing crop. The model and theory is developed to monitor the growth of crop by using computer vision.
构建良好的作物生长发育模型，不但可以预测作物在不同的环境条件下模型参数大多需要重新估计和优化。
Build a good crop growth and development model, not only can predict the crop in different environmental conditions, most need to re-estimate the model parameters and optimization.
根据工作物质热焦距设计谐振腔的具体参数。按理论组装出一套激光器进行试验。
According to the matter heat working focus designs concrete resonant cavity parameter and according to theory, assembling produces a set of laser device for carrying out an experiment.
通过该系统的自动调节作用，使温室中环境参数处于事先确定的最佳值，为农作物提供良好的生长环境。
In order to provide benign vegetal environment, the parameters of greenhouse environment can be adjusted and then be remained in preestablished value automatically by the system.
根据所测参数的实验数据，对其激光特性进行分析、总结，得出此种晶体作为激光工作物质所存在的潜力。
The laser characteristics are analyzed and summarized with the experimented data. In this way, as one of the working-laser material, the potential of the crystal can be acquired.
根据所测参数的实验数据，对其激光特性进行分析、总结，得出此种晶体作为激光工作物质所存在的潜力。
The laser characteristics are analyzed and summarized with the experimented data. In this way, as one of the working-laser material, the potential of the crystal can be acquired.
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