平均数量

The developing trends of marine fishing vessel number, sum power and mean power of fishing vessel were predicted by GM(1,1) models based on the grey systems theory.

利用灰色系统理论，建立了GM(1，1)模型，研究我国海洋机动渔船数量、总功率、平均功率的发展趋势。

PMNs suppressed the TNF-a re1ease fromPBMCs by 45% on average when Pams and PBMCs cocu1tllred at the ratio of 2f l.

PMNs与PBMCs按数量比2∶1共育时，PMNs的平均抑制率为45％。

Monthly averages of the sunspot numbers show that the number of sunspots visible on the sun waxes and wanes with an approximate 11-year cycle, The last five cycles are shown in the diagram below.

平均每月的太阳黑子表明，太阳的黑子数量上可见蜡和循环减弱的一个近似11年的周期，最后5个在图中所示。

The results were as follows: Firstly, the S-locus of Katy was heterozygous, and self-compatibility was dominant to self-incompatibility. Secondly, a very extensive segregation in self-pollinated fruiting rate, fertile flower rate and average fruit weight was observed in the F1 populations, and averages of these traits were lower than that of mid-parent means. Therefore, these traits were confirmed to be quantitative.

结果表明，（1）凯特杏的S基因位点为杂合型，自交亲和对自交不亲和为显性遗传；（2）3个杂交组合的自交坐果率、有效花比率及平均单果重等性状在F1中广泛分离，杂种群体的平均值低于亲中值，表现明显的衰退现象，表明这3个性状均为数量性状。

Second, wetland landscape pattern dynamic change of Kenli County Take TM as the information source, according to studies the region wetland ecosystem present situation characteristic, wetland is divided into 10 kinds: irrigation paddy field, pit pond water surface, cultivation water surface, artificial ditch, reservoir water surface, salt field, rivers water surface, reed, shallow seas and tidelands, beach. The wetland landscape area is remarkable dropt from 1987 to 2004.In 1987 the wetland area occupied 14.10% of Kenli county, but only was 12.33% in 2004, it reduced 6155.12 hm2 in 17 years and average reduced 362.07 hm2 every year, the reduction scope of shallow seas and tidelands wetland is biggest 3894.78 hm2. The shallow seas and tidelands and reed are frequent transformation with other type.

2查清了研究区湿地景观格局动态变化规律以TM影像为信息源，根据研究区域湿地生态系统现状特征，把垦利县湿地分为10类；湿地景观面积在研究时段内呈显著下降趋势，1987年湿地面积占整个研究区总面积的14.10%，但到2004年只占12.33%，17年共减少6155.12 hm2，平均每年减少362.07 hm2，其中滩涂湿地面积减少幅度最大3894.78 hm2；从各湿地类型之间的转换来看，各种湿地景观之间、湿地和非湿地之间相互转化和逆转并存，滩涂和苇地与其他地类转换频繁；研究区湿地景观斑块数量增多，景观多样性指数1987年为1.7643，2004年下降到1.7105，均匀度指数由1987年的0.6873上升到2004年的0.6923。

Control systems allow the independent control of the quantity, temperature and pressure of the air, fuel and non-flammable liquid introduced in the combustion chamber allowing control of the maximum temperature and average temperature within the combustion chamber as well as the temperature of the exhaust from the combustion chamber.

控制系统可以独立控制引入燃烧室中的空气、燃料和非可燃烧液体的数量、温度和压力，从而可以控制燃烧室中的最大温度和平均温度，以及燃烧室的排出温度。

About 40% of Swazis are infected with HIV, which has led to an unusually low life expectancy of 32 years and a huge number of orphaned children.

斯威士兰有将近40％的人口感染爱滋病，导致国民的平均寿命奇低，仅有三十二岁，及一群数量庞大的孤儿。

The amount of total corn root decreased with the increase of average soil BD.

玉米总根量和气生根数量随着整个土层平均容重的增加而降低。

If the electric charges in the two stars are supposed to be equal, it can be calculated according to the Kulun's theorem that 19100 nuclear unity masses must have one electron , such that the electromagnetic force produced can provide enough centrifugal force for the rotation.

假定两星所带的电荷数量相等，根据库仑定律，我们可以计算出，在两星中平均每19100个原子单位质量，就必须带有一个电子电荷，所产生的静电引力才能够提供足够的向心力。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。