查询词典 commanding height

Normally, the conicoid fitting method and the neural network method are used for converting a GPS height into a normal height.

转换GPS高程通常使用二次曲面拟合法和神经网络方法，但这两种方法各有优缺点。

Study of the causes of MCS intensification and rainstorm shows that( 1) just before the heavy rains occur, there are high temperature, considerably wetness and unsteady convective stratification in the air over the rainstorm-hit area, in addition to significant increase in convectively efficient potential energy, condensation height and decrease in the height of free convection – all these favor the happening of the heavy rain,(2) the mergence of meso-βcloud clusters leads to the MCS such fast growth as to produce rainstorm,( 3) the two lines of cumuli in the north and west correspond, separately, to two convergences on the surface wind field, with stronger convergence at their meeting point responsible for such intense development of meso-βcloud cluster as to bring about torrential rains.

分析MCS加强和产生暴雨的原因表明，首先，暴雨发生前夕暴雨区域具有高温、高湿和对流性不稳定层结，并存在明显的对流有效位能增加、抬升凝结高度及自由对流高度降低的现象，有利于暴雨发生。第二，β中尺度云团之间的合并，使MCS迅速增长，产生暴雨。第三，北、西两条积云线分别与地面风场中的两条辐合线相对应，在它们交汇处的较强辐合导致β中尺度云团强烈发展产生暴雨。

Eighteen (75%) trees were marked with secretion of the crissal gland at an average height of 51.8±15.6cm, and the remaining six were marked with urine at an average height of 64.5±14.5cm.

嗅味标记中，75%的嗅味标记为肛周腺分泌物，标记中心的平均高度为51.8±15.6cm(N=18)，25%为尿液，尿液上沿的平均高度为64.5±14.5cm(N=6)。

The results showed that the human disturbance didn't change the dominant positions and roles of Pinus massoniana and Cunninghamia lanceolata in arbor. But it decreased the average diameter at breast height and average tree height and changed the species composition.

结果表明，人为干扰对乔木层马尾松Pinus massoniana和杉木Cunninghamia lanceolata优势种的主体地位和作用没有根本性的改变，但使群落平均胸径和平均树高降低，群落种类组成发生变化。

With the new lunar gravity models LP165P and GLGM2,we analyze the character of the lunar gravity field,compute corresponding degreewise rms, and give gravity anomaly distribution figures at different height of the two models. Then we analyze and compare the character and difference of the lunar gravity models truncating to different orders and degrees at different height.

通过现有的最新月球重力场模型LP165P和GLGM2模型对月球重力场的特征进行了分析，计算了相应重力场的阶方差，给出了两种模型在月球外部空间不同高度上的重力异常分布图，分析比较了截断至不同阶次的月球重力场模型在不同高度上所反映的月球重力场的特征和差异。

However,Because of its pseudo dibranch biological characteristic,main trunk height mostly is decided by the height of seedling on the natural conditions,which had greatly affected on Paulownia timber productivity.

由于泡桐假二叉分枝的生物学特性，在自然条件下，苗高往往就决定了主干的高度，给泡桐生产造成了巨大的经济损失。

The wave is the core problem of low Fr. current .In order to make diffluent piers with low ridge to be popularized and applied, the surface wave of low Fr. current is chosen as the research object .We measure the surface wave elements and the velocity distribution of various diffluent piers scheme by the experiment of physical model. We also analyze the average wave height, the the average value of the square of wave , unit width of the waves energy , the probability density distribution of wave height ,and the power chart character, so as to reveal the weakening wave mechanism of the diffluent piers .

低Fr水流的核心是波浪问题，为了低坎分流墩的推广应用，本研究以低Fr水流的表面波浪作为研究对象，通过物理模型试验，对各种分流墩方案消能工的下游水面波浪要素、流速分布进行测试，分析低坎分流墩下游波浪的平均波高、均方根、单宽波能、波高概率密度分布及功率谱特性变化规律，从而揭示了低坎分流墩的削波机理。

It was observed that the annual mean hgight and mean diameter at breast height of 28 a trees were 1.06 m and 1.85 cm respectively, the height and DHB in successive years were more than 1.1 m and 2.50 m respectively after planting 5 a especially. Annual mean DHB increased faster than other Dipterocarpaceae species planted in same condition. The growth periods was long, lasted from February December.

该树种在引种地生长迅速，年均生长量分别为1.06 m和1.85 cm，特别是在造林5 a后，生长极为迅速，树高连年生长量超过1.1 m，胸径连年生长量超过2.5 cm，与同一立地条件下栽培的其他国产龙脑香科树种相比，径粗生长超过任何一种树种。

The main parameter is the safety valve displacement, the displacement determined by the caliber of the valve seat and valve opening height, height from the different open and divided into Enlight and two full-Kai style.

的主要参数是排量，这个排量决定于阀座的口径和阀瓣的开启高度，由开启高度不同，又分为微启式和全启式两种。

The main parameter is the safety valve displacement, the displacement determined by the caliber of the valve seat and valve opening height, height from the different open and divided into Enlight and two full-Kai style.

安全阀的主要参数是排量，这个排量决定于阀座的口径和阀瓣的开启高度，由开启高度不同，又分为微启式和全启式两种。

Many will continue to choose to live in duality and in conflict.

许多人将继续选择活在二元对立性和冲突中。

I find that students of the University of Physical Education all wear sportswear at first sight.

我发现：体育大学的学生乍一看，都是穿运动衣，大家都一样