查询词典 F region

Definition Let D be a bounded closed region in the 巧 1 plane and f a function defined on D.

定义 设 D 是平面的有界闭区域，是定义在 D 上的函数。

The distribution characteristic of auroral electrojet in AZS, is helpful for the studies of F layer and magnetosphere coupling in polar region and aurora dynamics.

了解了极光电集流在南极中山站的分布特征，有利于极区电离层和磁层耦合及极光动力学的研究。

The article utilize the government competition theory, game theory, region public management theory and network governance theory, analyze the necessity of horizontal competition among the local governments, the possibility of f horizontal competition, the inevitability of horizontal coordination and the effectiveness of horizontal governance.

文章结合政府竞争理论、博弈论、区共公共管理论和网络治理理论，分析了地方政府间横向竞争的必要性、横向合作的可能性、横向协调的必然性和横向治理的有效性。

The region in the altitude f rom 4400 to 4600 meters , which is mainly covered by alpine meadow and alpine swamp meadow , is st rongly degraded by the stock raising with it s influence radius of about 24 kilometers. The influence distance perpendicular to roads is also 24 kilometers , since road const ruction accelerates human2induced destruction to vegetation. Vegetation in shade aspect is rising due to the increase in precipitation , while vegetation in sunny aspect tends to be stable or degraded because of the enhancement in sunlight . Furthermore , the vegetation coverage is influenced by the groundwater level . In near riverbed fields , where the depth of groundwater is shallow , plant s can easily grow ; while in far riverbed fields , vegetation is prone to degrade due to drainage. The radius of river influence is 24 kilometers.

海拔4400～4600m的较低海拔地带退化最强烈，主要为高寒草甸与高寒沼泽草甸受牧业影响较大；牧业影响半径为24km；道路的影响范围为24km，道路的修建加速了人类对高原植被的破坏作用；阳坡植被呈现趋于稳定和退化的趋势，阴坡植被表现为增长的趋势，降水量增加是源区植被，尤其是阴坡植被变好的重要原因，而太阳光照增强是导致阳坡干旱和植被趋于退化的潜在原因；近河床区地下水位埋深较浅，植被生长具有稳定的地下水源；在远离河床的一定区域内，地下水易于疏干，植被易于退化，河流影响范围为24km。

Unlike in subsonic and transonic speed regimes, the in terference result in g from the f in ite size of the test region is seldom present

不像在亚、跨音速区域，这里因试验段尺寸有限造成的干扰是难得存在的。

These chemical shifts in the aromatic region of the resulting nucleophilic adduct 2-F were consistent with the counterparts of 9,10-dihydro-9-methoxy-9-(4-methoxyphenyl)-10-methylacridine, 17b which was proven to be the adduct of the 9-phenyl acridinium salt formed with an excess of MeOH (Figure S7 in Supporting Information).

论我国电子商务中的知识产权保护英文翻译哪位高人帮我把这个题目翻译成英文啊。。《论我国电子商务中的知识产权保护

Two eddy current sensors , which are mounted on bogie f rame of the vehicle , can detect stochastic inhomogeneity in region of the rail.

在机车的车轮架前后设置两个电涡流传感器，获得两个反映铁轨中非均质特性的随机信号。

In this paper,we use geostatistics to analyse special variability of soil salinity in Yanqi Basin of Xinjiang base on soil salinity data,and then we predict and draw the soil-salinity-class maps including unsampled region,it shows: the soil salinity data's Cv are not less than 100% and have very strong special variability;the spherical model f...

在焉耆盆地大规模的土壤取样、试验分析盐分数据的基础上，采用地统计学的方法对研究区的土壤盐分进行了空间特征变异分析，并采用普通克里格插值法制作出焉耆盆地的土壤盐分空间数字地图，结果表明：研究区各层土壤盐分变异系数均大于100%，具有强空间变异性；对土壤盐分进行半方差函数计算分析，发现拟合的理论模型均为球状模型，各层土壤盐分表现出强烈的空间相关性；土壤盐渍化程度在水平方向的分布与地形地势的关系密切，在垂直方向则表现出强烈的表聚特性。

This is a seed fill algorithm is based on a polygon known within the region point to a pixel within the region to f...

这是一个种子填充算法，是根据已知的一个多边形区域内部的一个象素点来找到区域内其他的象素点进行填充的。

The total amount a row of the our country fresh water resources sixth in the world, but the person all occupies the quantity to be worth equally for the world only of 1/4, occupies the 109 of world, and the resources of water distributes in the time and region up very unbalanced, have 10 province, cities, the water resources of the autonomous region F through low in at least of existence line, person there all the resources of water owns the quantity shortage 500 sign the square rice.

我国淡水资源总量名列世界第六，但人均占有量仅为世界平均值的1/4，位居世界第109 位，而且水资源在时间和地区分布上很不均衡，有10个省、市、自治区的水资源己经低于起码的生存线，那里的人均水资源拥有量不足500立方米。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。