查询词典 at the threshold of

Through the analysis of the loss and threshold characteristics of a laser diode, the threshold current density of LD with external feedback is calculated, according to the theory of multi-beam interference and the definition of equivalent reflection factor.

通过对半导体激光器的损耗和阈值电流特性的分析，引入等效反射系数的概念，根据多光束干涉的原理，导出了在外腔反馈作用下LD的阈值电流公式。

With the rules of NDVI 〉 threshold 1 and NLBR 〈 threshold 2, the coastal protective forests of 2005 and 2000 were acquired, in which the thresholds were determined from the scatter plots of NDVI and NLBR.

研究发现，综合利用NDVI大于阈值1和NLBR小于阈值2，可以实现沿海防护林的快速提取，而阈值可以根据NDVI和NLBR的散点图确定。

In order to determine the detection threshold in moving objects extraction, an adaptive detection threshold determination method based on the two-dimensional spatio-temporal entropic principle is proposed.

针对图像序列中运动检测门限的选取问题，提出一种基于二维时空熵准则自适应确定检测门限的新方法。

Differential threshold: The minimal difference that can be detected between two similar stimuli it called the differential threshold, or the just noticeable difference.

差别感受阈限：刚刚能够察觉的刺激物的最小差别量被称为差别感觉阈限，或最小差别感受阈限。

In view of the uncertainty of the settlement of the threshold in the heuristic process mining method proposed by Aalst to deal with the noise data in the log, a method of optimization settlement of threshold based on design of experiment analysis was proposed.

针对处理日志中噪音数据的启发式流程挖掘算法中阈值设置的不确定性，提出了基于试验设计的阈值优化设置方法。

Heaviside function was proposed to create a precise arithmetic model of the threshold gate. The model can describe both the set and reset behavior of the threshold gate.

提出采用Heaviside函数建立可精确描述门限门行为的数学模型，该数学模型可描述门限的置位、复位行为。

Abnormally lower threshold of sensitivity to heat and cold.

对冷、热温度的感觉阈值异常的低。

According the feature of gray absolute correlation degree, an edge detection method based on ray absolute correlation degree and standard deviation of Image sub-block is given, and the threshold is adaptive in the method.

针对灰色绝对关联度计算模型的特点，提出一种基于灰色绝对关联度和图像子块标准差的边缘检测算法，实现遥感图像边缘灰提取过程中阈值的自适应调整。

A threshold current which brings about the transition to absolute instability was investigated.

分析表明，绝对不稳定性的起振存在一定阈值，起振电流对电子注参数和电路参数极其敏感，确定起振电流是稳定器件工作的前提条件。

An absolute value of difference of both phase angles is within a fixed threshold value.

这两个相位角的相位差的绝对值在一个固定的阈值内。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。