ratio of distance

The basis of the theory model of laser radar for direct detection is built on that the maximal detectable distance is decided by certain detection probability, false-alarm rate, signal noise ratio and threshold noise ratio.

从虚警概率、探测概率、信噪比和阈值噪声比决定最大探测距离的这一角度阐述建立直接探测激光雷达模型；假设在直接检测方式下，探测器噪声可以用高斯概率密度函数表示；

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When the inlet pressure of nozzle and the distance to the reeds of certain size, cavitation intensity increase as the ratio of nozzle length and thickness increasing. 4.

当入口压力、喷嘴到簧片的距离一定时，簧片尺寸对空化强度有影响，随着喷嘴长度与厚度比值的增加，空化强度增强。

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Through the synthesis of the analyzed relations and simulation results, several important results are gained about effect of ratio of initial gas and particles velocity in accelerating zone on time, distance and acceleration of particles.

通过对解析关系和数值模拟结果的分析，给出了初始气固速度比对加速区变速运动的时间、距离、加速度等参数的影响。

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From the basic characteristics equation of jet pump and geometry analysis can be seen, flow ratio, area ratio, distance between power flow inlet and entrance to mixing throat and length of mixing throat are the main factors of jet pump efficiency.

从射流泵的基本特性方程以及几何尺寸分析可以看出，流量比、面积比、喉嘴距和喉管长度等是影响射流泵效率的主要因素。

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Results: Significant relationship of the FH MP angle and the ratio of distance from Go FH to the distance from Me FH was found between panoramic radiography and lateral cephalometrics.

结果：X线全颌曲面断层片与头颅侧位片上的FH MP角（下颌平面角）、Go FH距对Me FH距比值呈高度线性相关；

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The ratio of length to slice distance from rectal ampullae to anus was 1.3 calculated from CT.

通过CT测量的直肠壶腹距肛门的实际长度与相应层面距离的比值均值为1.3。

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Under the common meteorological ( average wind speed) condition, the average concentration of TSP per hour was relatively lower, more than 800 meters at the distance of lower wind direction, which was in accordance with the TSP ratio of the measurement.

结果表明：在通常气象（平均风速）条件下，各类稳定度的TSP小时平均浓度在下风向距离800m以上均较低。基本上与实测值的TSP值相吻合。

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Our simulation results show that when the ratio of amplifier spacing to dispersion distance is below 0.1, the performance of soliton system is well enough.

仿真结果表明当放大器间距与色散距离比值小于0.1时，系统能够保持良好的传输性能；

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Furthermore, light intensity decays accordingly to a given ratio of the distance from the lamp.

另外, 光线强度按比例随着与到灯之间的距离的拉大而减小.

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The distance of skin to radial artery, inside diameter, area, area ratio, pulsate index and flow were of good value on pulse strength.

对确定脉力有价值的指标是皮肤表面到桡动脉的距离、管腔内径、管腔面积、面积的比值、搏动指数和血流量；

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With the Factor analysis, the results showed that the factors affected the habitat choice of plateau pika were habitat position, soil character, water distance, shrub cover ratio and height of Broad leaf vegetation.

统计结果显示：影响高原鼠兔生境选择的主要因子依次是生境位置、土壤质地、离水源的距离、灌丛植物盖度和阔叶植物高度。

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