Dynamic simulation models using logistic regression equations for plant leaf-area and plant aboveground air-dried weight over time were established.
结果表明,4个大豆品种的单株叶面积随时间的变化动态可以用修正的logistic曲线^y=k(1+ea+bt+ct2+dt3)-1来拟合。
coefficient for defuse penetration(TD) and radiation penetration(TR) and leaf distribution(LD) were measured by CI-110 digital plant canopy imager system to soybean population differing in single plant nutrient area during growing season.
经过分析,不同营养面积所形成的冠层的指标参数是不同的,随着单株营养面积的减少,LAI逐渐增大;平均叶倾角先增大后减少;散射辐射和直射辐射逐渐降低,但是散射辐射始终大于直射辐射;叶片分布密度增大。
Force applied uniformly over a surface, measured as force per unit of area.
压力；压强统一作用于物体表面的力量，用每一单位面积上的压力计量
The quantity of something per unit measure, especially per unit length, area, or volume.
密度某物每单位测度的数量，尤指每单位长度、面积或体积
a unit of area equal to one yard by one yard square.
面积单位等于一码乘以一码的面积。
"The number of individuals, such as inhabitants or housing units, per unit of area."
每单位面积居民或住房的数目.
a measure of the amount of flux per unit of cross sectional area.
每单位相交区域面积上的磁通量。
a unit of area equal to one inch by one inch square.
面积单位等于一英寸乘以一英寸的面积。
The number of individuals, such as inhabitants or housing units, per unit of area.
人口密度每单位面积居民或住房的数目
There are four units in one level. The sizes of the units are140 square meters and180 hundred square meters.
每层有四个单位，单位面积有140平米和180平米两种。
The total dislocation length per unit volume of material; alternately, the number of dislocations that intersect a unit area of a random surface section.
材料单位体积内的位错线的总长度，或者在一个随机切面上的单位面积内切断的位错根数。
The luminous intensity on unit area.
单位面积上的发光强度。
space for one line of print (one column wide and 1/14 inch deep) used to measure advertising.
报纸上的广告面积单位。
production of shaft kiln for unit cross section
立窑单位截面积产量
a unit of surface area equal to 100 square meters.
表面积单位等于平方米。
a measure of the strength of a magnetic field per unit area.
测量单位面积的磁感强度的单位。
a measure of luminous flux per unit area.
测量单位面积光通量的单位。
a unit measuring force per unit area.
测量单位面积所受的力的单位。
A metric unit of area equal to10ares.
十公亩面积的公制单位之一，等于十公亩
a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle.
一支蜡烛的点光源在每英尺表面的照度的单位。