spectrum range造句
例句與造句
- Near field spread spectrum range algorithm based on software radio
基于軟件無線電的近距離擴頻測距算法 - The product spectrum ranges from simple carbon steel and low - alloy steels to high - quality carbon steels
產(chǎn)品種類范圍從簡單的碳鋼和低合金鋼到高質(zhì)量的碳鋼。 - Modis has 36 observational channels , covering a wide frequency spectrum ranging from visible to infra - red radiation , making it valuable data source for a number of disciplines such as meteorology , oceanography as well as environmental monitoring
Modis擁有36條觀察頻道，覆蓋了從可見光至紅外光的廣闊頻率，使它成為一些學(xué)科如氣象學(xué)海洋學(xué)甚至是環(huán)境監(jiān)測的寶貴數(shù)據(jù)來源。 - Modis has 36 observational channels , covering a wide frequency spectrum ranging from visible to infra - red radiation , making it valuable data source for a number of disciplines such as meteorology , oceanography as well as environmental monitoring
Modis擁有36條觀察頻道，覆蓋了從可見光至紅外光的廣闊頻率，使它成為一些學(xué)科如氣象學(xué)、海洋學(xué)甚至是環(huán)境監(jiān)測的寶貴數(shù)據(jù)來源。 - Female courtship signal of the brown planthopper was made of many continuous regular pulses and male ' s signal was made of similar syllabics and had two types with different time domain characteristics . second male vibrational signal differed from male courtship signal with wide spectrum range and regular syllabics frequency . time domain characteristics of signals in different individuals even the same individual were different
頻域特征分析知，褐飛虱雌蟲求偶嗚聲信號的頻域特性較穩(wěn)定，個體內(nèi)比個體間差異??；雄蟲求偶嗚聲信號s 、 e片段頻譜范圍較寬，但主振頻率比較接近，差異不顯著； m片段頻帶較窄，主振頻率mvf略小于s 、 e片段，變異較??； m片段脈沖重復(fù)頻率prf為幻 - It's difficult to find spectrum range in a sentence. 用spectrum range造句挺難的
- Electrostatic self - assembly multiplayer ( esam ) method has advantages in preparing films and develops fast in recent years . in this work , pdda / sioa complex films and sio2 anti - reflective films were prepared by esam method , and their optical properties in the visible light spectrum range and anti - scratching performance were investigated
本文用靜電自組裝( esam )法制備了聚電解質(zhì)pdda與sio _ 2膠體粒子的有機無機復(fù)合光學(xué)薄膜以及sio _ 2光學(xué)增透膜，研究在可見光范圍內(nèi)透光性能及抗機械損壞能力等。 - According to the experimental data of droplet size 、 particle spectrum range 、 droplet cone shape 、 flow rate 、 cover area and cover area rate which obtained through changing the pressure of power sprayer and the nozzle diameter in greenhouse ， this paper made comparative analysis on atomizing performance in same pressure and different nozzle type between same nozzle type and different pressure . the conclusion is that : the ejection rate and the droplet cone shape change with the variation of pressure and nozzle diameter ， average particle diameter decreases obviously and particle quantity increases obviously with the increase of pressure and decrease of nozzle diameter . these results will lay experimental foundation for precise spraying 、 low pollution and highly effective operation
本文根據(jù)溫室內(nèi)動力噴霧機壓力與噴嘴孔徑的變化影響霧滴大小、粒譜范圍、霧錐形狀、流量、覆蓋面積及覆蓋面積率的試驗數(shù)據(jù)，對相同壓力下不同噴嘴型號和相同噴嘴型號時壓力不同時的微?；阅苓M行對比分析和研究，得到如下結(jié)論噴出量與霧錐形狀隨著壓力和噴嘴孔徑大小變化而變化；平均粒徑隨著壓力的增加和噴嘴孔徑的減小而明顯減小；粒數(shù)隨著壓力的增加和噴嘴孔徑的減小而明顯增多，為精噴量、低污染、高防效的防除作業(yè)奠定了實驗基礎(chǔ)。 - According to the current problems such as low quantum efficiency . limited available sun energy spectrum range , and inefficient recovery , resulted from the practical using of photocatalysis , using the narrowband semiconductor cds ( eg = 2 . 5ev ) to compound with tio2 seems to be an effective solution . since it will not only enlarge the region of the absorption with the proper narrow band of cds but also improve the photodegradation efficiency on account of the band overlap of the two , which makes the photo induced electron and holes separate more easily
本文針對光催化技術(shù)應(yīng)用中存在的tio _ 2光催化量子效率低，吸收利用太陽能光譜范圍有限，催化劑回收困難等問題，通過窄禁帶半導(dǎo)體cds ( e = 2 . 5ev )的復(fù)合，對納米tio _ 2進行了改性研究，一方面，由于cds的窄禁帶寬度可以擴展薄膜的光譜吸收范圍，另一方面，由于能帶的交疊，提高了光生電子和空穴的分離效率，從而提高了薄膜的光催化降解效率。 - Wide band - gap ii - vi materials , such as znse , znte and their alloys attract much attention due to their potential applications in light - emitting devices ( leds ) , laser diodes ( lds ) , optical bistable and optical nonlinear devices operqtynw in blue - green spectrum range for the fact that they exhibit large band gap and high exciton binding energy
寬帶-族半導(dǎo)體材料，尤其是znse和znte及其合金具有寬帶隙、直接帶躍遷、激子束縛能大等優(yōu)點而作為藍和藍綠發(fā)光、激光以及在該波段響應(yīng)的光學(xué)雙穩(wěn)和光學(xué)非線性的重要候選材料。 - We adopt double alkali cathodal tube 9789qb , which was made by emi corporation in england , as our photomultiplier , whose spectrum ranges between 300nm to 650nm , with less noise counters and single - photon apices , which make it suitable as a single - photon - counter . the disparted - voltage device is designed in a reasonable way and the cooling system of iquefied nitrogen which makes it small in size , simple in structure , easy in processing , cheap in cost and good in performance
該管型的光譜范圍在300 650nm ，具有暗計數(shù)少，有單光子峰的特點，適于做單光子計數(shù)器；本文的光電倍增管分壓器設(shè)計合理而冷卻系統(tǒng)采用液氮，該系統(tǒng)體積小、結(jié)構(gòu)簡單、加工便利、成本低廉且性能良好。 - It consists of three main parts : in the first part , we analyse the effect of multipath on code - tracking loops of receivers in spread - spectrum ranging systems . first , we establish the model of received signals with the present of multipath through the presentation of multipath ’ s characters . then , we analyse the theory of delay lock loop ( dll ) , based on which we derive the tracking error of dll caused by multipath
首先通過對多徑信號特性的分析得到存在多徑時的接收信號模型,然后在對擴頻測距系統(tǒng)的延遲鎖定環(huán)路( delaylockloop )工作原理的分析的基礎(chǔ)上,闡明了多徑存在時碼跟蹤環(huán)路產(chǎn)生誤差的機理。