mean height的例句大全

Firstly, forest stand mean height and volume were estimated based on low-density airborne LiDAR ( 0.39 points/ m2) using the improved crown recognition algorithm.

首先，基于低密度机载激光雷达数据（0.39个点/m2）利用改进的树冠识别算法进行了林分平均高、蓄积量估测试验。

It is suggested that the June rainfall may be predicted by means of 500 mb monthly mean height in February and mean sea-surface temperature in January.

提出可由2月500毫巴平均高度和1月平均海温预报当年6月份雨量。

Effects of crown ratio and mean height on the relative stem form were studied by sample plots and sample trees for Pinus tabulaeformis in main forested region of Shaanxi.

本文用在陕西主要林区调查的油松标准地、标准木材料，就树冠率和平均高对相对干形的影响进行了研究。

The canopy, mean height and mean breast diameter of tree layer raised step by step, but the species richness and diversity of communities lowed progressively along with community succession;

森林采伐后随着顺行演替的进行，乔木层郁闭度、平均树高和胸径逐渐增长，群落的物种丰富度和多样性指数逐渐降低。

To contrast the mean height ( after correction) of each group ( A-F) with that of the normal population by the t-test. The level of significance was set to 0.05.

用统计学方法（t检验）比较各组中的腰椎间盘平均高度值（校正后）与正常人群之间的差异，显著差异水平定为0.05。

The selected provenances'mean height, DBH, individual volume was 8.12 m , 12.49 cm , 0.0552 m 3 , respectively.

入选种源平均树高8.12m, 平均胸径12.49cm;平均单株材积 0.0552m3.

The selected families'mean height , DBH, individual volume was 8.1 m , 16.5 cm , 0.1132 m 3 , respectively.

入选家系平均树高8.1m, 平均胸径16.5cm;平均单株材积0.1132m3.

In the first-degree site condition, the mean height and DBH of the sapling forests under intensive management increased by 21% and 48.4% compared with under extensive management, respectively.

Ⅰ级立地：集约经营的幼林平均高、平均胸径比粗放经营增长21%和48.4%；

Further contrast tests demonstrate that the RMS error of the monthly mean height in the middle and lower troposphere also be largely reduced, and some well-known systematical defects can be greatly improved.

进一步的对比实验表明，对流层中部和下部的月预报平均高度场RMS误差也显著降低，而且一些明显的系统性误差也得到大幅度改进。

The increment peak of mean height was at age of 2 too, and then it was decreased by 2/ 3 at age of 3 and decreased by 1/ 2 at age 4 years.

树高生长的高峰值也都出现在前2年，第3年的生长量减少2／3，第4年又减半，至各种密度的树高年生长量几乎相近。

in fact, the transformation and unification of the local height datums have relations to the mean sea level variation at the shore where the tide gauges are located.

局部高程基准的转换与统一，不得不涉及沿海各主要验潮站平均海平面的变化。

students of height, weight, showed the mean annual increase in the basic trend, but modest.

大学生身高、体重均值基本呈逐年增长趋势，但幅度不大。

Augustus raised Agrippa ( though of mean birth ) to that height.

阿葛瑞帕 虽然出身微贱,但是奥古斯塔斯却把他升到很高的地位.

Indirect selection for height might mean selecting trees with the highest photosynthetic rate.

对树高的间接选择可能就意味着选择光合作用效率高的.

The average mean square error of height anomaly is ± 0.173 m in three areas.

3个地区高程异常中误差平均值为±0.173m。

Based on the NCEP/ NCAR monthly mean reanalysis data, the variations of geopotential height and potential temperature over South Asia and their relationships with ozone variations are analyzed in this paper.

进一步采用NCEP/NCAR再分析资料分析了亚洲上空位势场和位温的变化及其与臭氧变化的关系，结果显示青藏高原和伊朗高原上空臭氧含量的变化和南亚高压有着密切的关系。

It briefly introduces the historical change of Wusong Datum in the Changjiang Estuary region, and analyzes the spatial variations of regional mean sea level and theoretical bathymetrical datum plane in this region. A discussion is also given to the height system of the Changjiang Estuary region.

简要介绍长江河口地区吴淞零点的历史沿革，分析了长江河口地区水域平均海水面、理论深度基准面的空间变化，进而讨论长江河口地区的高程系统。

The conceive of mean sea surface height model and ocean tidal model suitable to Chinese near sea and its neighborhood is provided;

提出了建立适于我国近海及邻域平均海平面模型和海洋潮汐模型的设想；

First, the defmation and status of height datums is introduced and some problems on the local height datums established by the mean sea level, which is defined by the tide gauge data, are discussed.

首先介绍了高程基准的定义与现状，指出了用验潮站长期平均海平面建立局部高程基准所存在的问题；

To describe the nature of hemispherical monthly mean geopotential height fields, several circulation indices, such as intensity of climate fields I c, intensity of climate anomaly fields I a, instability of climate fields I us, are defined.

给出了表征半球月平均位势高度场性质的若干环流指数：气候场强度Ic、气候异常场平均强度Ia、气候场不稳定度Ius。