查询词典 envelope detector

It is difficult to obtain the accurate segmentation threshold of the image. This paper uses the multinomial to approximate the histogram envelope curve by different phase. So the question of how to obtain the accurate segmentation threshold of the image can convert into the solution of the minimum of multinomial, Using this method it can be solved the question how to segment the image more accurately.

对于在图像分割时难于得到图象分割的准确阈值问题，提出利用多项式对直方图包络线进行分段拟合，把图像分割阈值问题转化为求多项式极小值的问题，从而求出用于分割图像不同灰度层次的最优阈值的方法。

But within its envelope this rifle can show accuracy of about 0.5 MOA, which is quite good.

但是，这在其信封步枪可以显示约0.5农业部，这是相当不错的准确性。

Although I moistened it, the flap doesn't stick to the envelope.

我把信封口抹上胶水了，可还是贴不上。

Each unit is sealed in a Mylar envelope containing a nitrogen atmosphere.

每个单元都密封在含有氮气的聚酯薄膜封套内。

The little dressmaker bought an envelope of nasturtium seeds at the florists.

那个个子矮小的女裁缝在花铺里买了一包金莲花种子。

In order to examine the moisture condensation status on the inner surface of the building envelope, CFDsimulation was applied to the ventilation and air conditioning system design for a natatorium in Hangzhou.

在杭州某游泳馆通风空调设计中，为了考察围护结构内表面的结露情况，利用简化的模型进行了CFD数值模拟。

While the rats in experiment group were narcotized with 25 mg/kg nembutal via abdominal cavity, and the male hepatic oval cells were inoculated (106 each point) under the liver envelope after the abdominal part was cut open. The rats received transplantation were also fed with DAB-containing food for 14 weeks to promote the formation of liver cancer.

实验组按25 mg/kg体重戊巴比妥腹腔麻醉，消毒开腹，用吸取♂Wistar大鼠卵圆细胞悬液，接种至肝脏包膜下，每点106个，之后连续喂含DAB饲料14wk，促进肝肿瘤的生成。

This article gives an analysis,simulation and comparison of the performance of square demodulation ,Hilbert transform,wavelet transform,and nonlinear operator methods in extracting envelope spectrum of ship noise,and comes to the conclusion that their performanes are close.

分析并仿真比较了检波滤波法、希尔伯特变换法、小波变换法与非线性算子法等在提取舰船噪声包络谱中的性能，得出了它们性能接近的结论。

One day I saw an envelope that had been slipped under my apartment door; the telephone company was cutting off my service for nonpayment.

一天，我看见从我房门下面塞进来了一个信封：电话公司因为我没交费要掐我的电话了。

An official-looking envelope with NASA's logo in the upper left-hand corner.

一个左上角印着国家航天局标志的官方信封。

The two-acre Dunbar Community Garden in Little Rock has served as a model for several years.

几年来，坐落于小石城，占地两英亩的邓巴社区菜园树立了一个标杆。

Jerry points to the jacket hanging in the bathroom. It's ruined, and unwearable What?

杰瑞指着洗手间里挂着的夹克，毁了，不能穿了）什么？