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|  | | 为了更好的帮助您理解掌握查询词或其译词在地道英语中的实际用法,我们为您准备了出自英文原文的大量英语例句,供您参考。 | |
The mechanism of AM fungi in enhancing drought resistance of host plants ascribed to greater osmotic adjustment and greater absorption area of root system by AM colonization.
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Adjustment approach to boundary effect on aggregation index and its application
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Results indicated that photosynthetic available radiation, air temperature and relative humidity can affect xylem embolism by daily adjustment of stomatal conductance, transpiration rate and water relations of a tree.
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A new digital readout system for micromachined gyroscope has been proposed to implement flexible parameter adjustment, improve the control performance of gyroscope, and make error compensation.
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They were also applied for automatic seam tracking, such as automatic torch transverse alignment and torch height adjustment in welding.
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The commonly used objective analysis scheme (Scheme-A) for the analysis of wind and geopotential height smoothen the divergent component of the wind which is rather important in the tropics, specifically over convective regions.
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Secondly, the fixed-lag smooth filter is used to smoothen the motion track of the original video sequence, according to different motion models.
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The mapping rules are presented in a manner that will keep as much of the semantics of the database intact, in order to smoothen the important step of data migration from an ER schema to an OR schema.
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During revision, bone cement was used to smoothen the protruding anterior edge of the acetabular reconstruction ring in order to obtain a relieved sliding of the tendon.
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A special scaling function is introduced to smoothen the transition between the damped and undamped phases.
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| | The object of this paper is offer an analytical method for solving the very important stereo-bridging problem in photogrammetry. In solving this problem we suppose that at the beginning and at the end of an arbitrary photo-strip there are three ground control points having their immages on the corresponding two pairs of photographs respectively. Based upon this condition we can utilize the stereo-resection method to carry out the aerial triangulation throughout the entire strip in order to get enough space ... | | 本文的目的,在於提供一种算学解析的方法,从理論上去解决在一条相当長的航帶上只在兩端各有三个地面控制点的情况下,展开空中三角測量,以达到每張像片都有足够的控制点,以便独立或分区制圖的問題,解决本問題的重点是:(1)根据一条航带兩端的三控制点确定該航线首尾兩端各兩張像片的外方位元素。(2)由于在一条航带上的各像片彼此都有60—80%的左右重叠,在第一、第二及第三像片的重叠区域可选出七个点来利用已經定位了的第一、第二兩像片,以空間交会的办法計算出該七点的地面坐标。(3)在該七点中适当选擇6个点的地面坐标及其在第三像片上的像点坐标(根据第三像片的几何軸量得的),确定第三像片的外方位元素。(4)利用第二、第三及第四像片,在其重叠的区域内选擇七个点,按照确定第三像片外方位元素的办法,确定第四像片的外方位元素,如是类推至最后一張像片为止。(5)由于航帶兩端各有三控制点,上面的推算各像片的外方元素的过程实际上是从兩端开始向中央推进,其最中間的一張像片的外方位元素及其中央的交会控制点的坐标,因有各种誤差参入的关系,由兩端推来,当会得到兩組不同的数值,取其中数作为第一次近似值,將其坐标誤差一边一半向兩端按距离分配,作为控制点的概... | | 文摘来源 | | : | | 本文依解算微分方程式的基本原理和理论物理上的微分方程观点,布置了一个以福里哀积分为基础的新平差方法。作者选择了一套三角测量补网的现成数据,用此新法来平差,其结果是惊奇意外的省事,并很明显的较这套数据原有的平差结果好。因将其可以确见的优点和开展中的研究方向,一并写出,以供今世工作同志们参考。 | | 文摘来源 | | The masses of nuclei from n to Ca~(41) have been derived from nuclear Q values exclusively, without recourse to mass spectrometric results, by an approximate least-squares adjustment. Main results are: | | 近年原子核反应能量(包括核衰变能)的精密测定的累积,使我们有可能单独从核反应能的测量来确定轻原子核的质量。本文用近似的最小二乘统计平差,由原子核实验数据得出从中子到Ca~(41)各同位素的原子量。主要结果如下: (1)由核反应能导出的、质量差2D~2-He~4的数值和质谱测定的比较,给质量和能量联系公式,E=mc~2,提供了最精确的实验证明。准确度为1/6000。 (2)从A=1到41一共79个同位素的原子量(表8),和统计平差后的Q值(表1)。这是现在由原子核转变的数据所能得到的,一组最可几的质量值。主要的质量是: n=1.008 9842(±17), H~1=1.008 1440(±17), D~2= 2.014 7381(±29), He~4=4.003 8732(±21), C~(12)=12.003 807(±5), S~(32)=31.982 188(±26), Ca~(40)=39.975 204(±39)。 (3)本文所得的结果显示作者所用的方法,在现阶段原子核实验知识的限度下,和全盘的最小二乘平差方法具有同样意义,达到同等的精密度,而手续较为简单有利,且便... | | 文摘来源 | |   | | << 更多相关文摘 |
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