查询词典 crossing-over

Due to its good effect in the reservation of information of signal abrupt change, mathematical morphology is often applied in the detection and location of short-term power quality disturbance, however, there is still a defect of invalid detection existing in partial detection methods based on mathematical morphology while some zero-crossing disturbances are detected. In this paper three mathematical morphology based disturbance detection and location methods, i.e., the method based on first-order derivation and morphological gradient, the method based on morphological gradient and soft threshold processing and the method based on dq decomposition and top-hat transform, are analyzed, that is, by means of simulation the adaptability of these methods in the analysis on the signals of voltage sag, voltage swell and electromagnetic transient oscillation is compared.

数学形态学因其在保留信号突变点信息方面有很好的效果，因此常用于短时电能质量扰动的检测和定位，但基于数学形态学的部分方法仍存在对某些过零点扰动检测失效的缺点，文章分析了3种基于数学形态学的扰动检测和定位方法，即基于1阶求导和形态梯度的方法、基于形态梯度和软阈值处理的方法、基于dq分解和高帽变换的方法，通过仿真比较了3种方法在分析电压暂降、电压暂升、电磁暂态振荡等信号方面的适应性，结果发现基于dq分解和高帽变换的方法在检测过零点扰动时具有很好的效果，因此选取这种方法对实测扰动数据进行了检测和定位分析。

According to the result we have see the Crossing Field Antenna is not conform to the classical electromagnetism theoretic.

根据得到的结果显示CFA天线的原理违背了经典的电磁场理论。

In addition, electron gets the transversal drift velocity and meanwhile causes an additional temperature rise in this crossing field produced by space charge field and longitudinal solenoid field.

标 签 电子冷却空间电荷冷却效率漂移速度温升 Electron cooler Space charge Cooling efficiency Transversal drift velocity Temperature rise

In order to tell this story to better advantage the young man left his chair, and crossing the room, took up his place opposite to Lady Audley in the embrasure of the window.

为了更好地讲故事，年轻男子离开了他的椅子，穿过房间，在面对奥德利夫人所坐的窗户空档的地方就座。

The embroiderer use features overlapping and crossing, different layers color of random stitches to display this work.

原作是一幅色彩绚烂的抽象画，刺绣艺术家运用乱针绣重叠交叉、分层加色的特点来表现。

The place of the innovation of this plan depends on becoming ball gear and dish when form emery wheel undertakes clench the teeth moves, ball gear is not to bypass the upend axis of ball heart turns, circle parallel to turn at crossing the axis of the upend axis of ball heart however, dish the motion of form emery wheel is the translation inside 2 dimension plane.

该方案的创新之处在于当球齿轮和盘形砂轮进行啮合运动时，球齿轮并不是绕过球心的竖直轴转动，而是绕平行于过球心的竖直轴的轴转动，盘形砂轮的运动是在二维平面内的平动。

The result suggested that different genomes had different genetic speed or stability during evolution.3 The similarities co-efficiency between wild emmer and hexaploid synthetic was higher than that between wild emmer and common wheat. So that crossing among species is not a simple combination of genomes, but involve introgression of chromosomes, and the evolution made by this action was bigger than that made by environment.4 According to the results of salt tolerance identification, the salt tolerance of wild emmer is lower than that of common wheat in the whole.

野生二粒小麦与普通小麦之间的遗传相似系数稍高于野生二粒小麦与其与节节麦合成的双二倍体的遗传相似系数，说明物种之间的杂交并不仅仅是染色体组简单的合并，其中包括复杂的染色体组本身的一些特性以及染色体之间的互渗且这种作用远大于环境作用所引起的变化。

The Orcs and Dwarves again did the same emote of one arm level and the other crossing it.

兽人和矮人在次拥有同样的无礼动作，一条胳膊平放，另一条与之交叉。

The shell is divided into orthogonal or oblique crossing girder systems, which make up a space rigid frame structure, then an analysis is made of the endogen force of the shell structure based on the curved lever space rigid frame structure.

该方法通过将壳体结构离散成相互垂直或斜交的曲杆梁系组成的空间刚架结构，进而分析曲杆空间刚架结构的内力，达到壳体内力分析的目的。

And mint tea can stimulate the food movement inside enteron, help aid digestion, suit intestines and stomach especially unwell or was to eat too after crossing a stodge drinkable.

而薄荷茶可以刺激食物在消化道内的运动，帮助消化，尤其适合肠胃不适或是吃了太过油腻的食物后饮用。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。