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- Study on the species richness and minimum sampling area in both natural and artificial Pinus tabulaeformis forests 油松天然林与人工林物种丰富度及最小面积的比较研究
- Determination of species-area relationships and minimum sampling area for the shrub communities in arid valley in the upper reach of the Minjiang River 岷江上游干旱河谷灌丛群落种-面积曲线的拟合及最小面积确定
- Determination of the Minimum Sampling Area for Mid-subtropical Evergreen Broad-leaf Forest (Castanopsis carlesii Forest) in Fujian Province, China 福建中亚热带常绿阔叶林(米槠林)最小面积的确定
- the minimum sampling area 最小取样面积
- minimum sampling area 最小面积
- The paper also gives mathematical model of evaluation of surface roughness in sampling area and processing method of data. 同时也给出了在取样面积内表面粗糙度评定参数的数学模型和数据的处理方法。
- The biomass of P. australis population of each sampling area grew in function of power along with the increase of height. 各样地芦苇种群生物量均随着高度的增加而呈幂函数形式增长。
- Species-household curve that similar to area-species curve of 3y fallow field showes the minimum sampling percentage were 20% based on the fit and assessment of model curve S=a+blnB. A list of folk utilizable plants found in sampling plots is attached. 采用曲线S =a +blnB作为农户数 -物种数曲线的拟合模型初步确定热带地区 3年轮歇地户级水平农业生物多样性的抽样比例为 2 0%25。
- The GVG system is a new solution,with the conception of sampling lineage instead of the traditional sampling point or sampling area,to extracting crop acreage information. 线采样系统提出以线状样区代替以往成数抽样中的点样区与面积样区概念,通过统计线状样区内作物种植面积成数来反映区域总体农作物种植面积成数。
- Five sampling areas were set in Nanjing city in order to collect total suspended particulates (TSP) and inhalable participates (PM10) in ambient air. 在南京市各功能区设立五个采样点,采集总悬浮颗粒物(TSP)和可吸入颗粒物(PM10)样品,采用索氏提取、K-D浓缩和吹氮浓缩的方法进行预处理;
- The shift of sample area can be resolved by signal resample in frequency domain or time domain. 从理论上分析了如何 在频域和时域采用信号重采样区间偏移的问题。
- He steered into the parking area. 他把车开进了停车区。
- The minimum sample frequency that allows reconstruction of the original signal, that is 2W samples per unit distance, is known as the , (or Nyquist rate).The time inbetween samples is called the . 如果采样的频率低于这个界限,原信号中频率高于采样频率1/2的频率将会发生“混叠失真”,并在采样得到的信号中以相对低的频率出现。
- In early 2002, without notifying his supervisors, Ivins began sampling areas in the Detrick lab space that he believed might be contaminated with anthrax. 2002年初,在没有通知督导的情况下,埃文斯开始在底特里克堡实验室内取样,他相信那些地方可能已经被炭疽病菌污染。
- We have pared down our expenses to a bare minimum. 我们已最大限度地削减了开支。
- The slum area was sordid and filthy beyond belief. 该贫民区之污秽肮脏简直令人难以置信。
- The class needs a minimum of 6 pupils to continue. 这个班最低限度要六个学生才可以继续办下去。
- The flood cut a wide swath in this area. 洪水席卷了这一地区,满目一片疮痍。
- The luminous intensity on unit area. 单位面积上的发光强度。
- A withdrawal limit of $200; no minimum age limit. 提款数量最多不超过200美元; 没有最低年龄限制。
