optimum density的例句大全

Growth effect on the tree height and breast diameter and volume of 2 afforestation with different densities were different as different species. Optimum density should be adopted to plant according to different species when cultivate industrial raw material forest within short period.

2种不同密度造林对高、径和材积的生长影响，因树种不同而不同，因此在培育短周期工业原料林时宜根据不同树种而采用其适宜的密度造林。

using an optimum density threshold and corresponding grid granularity can be ascertained with a set of given density thresholds.

在给定一组密度阈值的条件下，利用该方法可以确定一个最佳的密度阈值及相应的网格粒度。

in america, the optimum density for the best use of road space is around 50 vehicles per lane-mile .

在美国，道路最佳使用效率的理想车辆密度大约是每车道英里50辆车。

a study on optimum density and disposition of forest road network

山地林道网合理密度与配置的研究

study on optimum density about various stories of natural broad- leaved forests in northern fujian province

闽北天然阔叶林各林层合理密度的研究

research on optimum density of different melon shape in watermelon seed production

西瓜制种不同瓜型母本最佳密度研究

research on distributing zones of optimum density in high loess embankment

高填方黄土路堤的最优填筑密度分区研究

research on the optimum density of forest road network on ecological benefits

考虑森林生态效益因子的林道网合理密度研究

study on the optimum density of carbon nanotube field emission cathode arrays

最佳碳纳米管场发射阴极阵列密度的研究

optimum density of larch plantation

落叶松人工林最适密度的探讨

compute the optimum density of carbon nanotube arrays based on finite element method

基于有限元软件分析碳纳米管的最佳阵列密度

A study on optimum density of soil and water conservation Black Locust Forest in Taihang Mountain

太行山刺槐水土保持林的适宜密度研究

The single factor experiment obtains the synthesis optimum condition is: Temperature 30 ℃, time 3 h, initiator amount used 0.1%, monomer density 15%;

单因素实验得出合成最佳条件为：温度30℃，时间3h，引发剂用量0.1%，单体质量分数15%；

An optimum planting density must be employed to get a high yield, depending upon soil condition, varietal tillering ability, fertilizer level, number of plants per hill, and planting season.

获得高产必须采用最适植株密度，视土壤条件、品种分蘖力、肥力水平、每蔸苗数和播种季节而定。

A study on density optimum control during stand management for plantation

人工林经营过程密度最优控制研究

Studies on Optimum Scheme of Planting Density and Fertilization for a New Sweet Potato Cultivar Yushu 303

渝薯303扦插密度和施肥量的优化研究

quick measuring method on the max. dry density of soil and optimum moisture content rate

土的最大干密度和最优含水率快速测定法

firstly, we analyzed culture way, culture density and water quality in indoor recirculating aquaculture system, and determined the optimum conditions for culturing pearl.

首先，分析了室内封闭育珠体系中放养方式、养殖密度和循环水质指标，确定了该体系的最佳育珠条件。

optimum range of cathodic current density for lead electroplating was determined by huss cell test.

通过霍尔槽试验确定了最佳阴极电流密度范围。

normal test method is employed to explore the relationship between dry density and optimum water content of coal gangue used in daming.

采用标准试验方法求得筑坝用煤矸石的最大干密度和相应的最优含水量。