low frequency medium frequency 中文意思是什麼
low frequency medium frequency
解釋
低頻中頻-
Electromedical equipment. galvanic current or low - medium - frequency equipment
醫用電氣設備.電流或中低頻設備 -
Chapter 5 is about the design of millimeter wave solid circuit included frequency multiplier, low noise amplifier, medium power amplifier, mixer, if amplifier lastly, based on the work above, a millimeter wave t / r module is developed and the analysis of the result is also introduced
第五章毫米波固態電路，詳細分析了毫米波倍頻器、低噪聲放大器、毫米波放大器、混頻器的理論，製作了毫米波混頻器、毫米波放大器、中頻放大器、倍頻器等有源電路。最後，在上述基礎上製作了毫米波t / r組件。 -
Abstract : igct is a kind of new ideal medium - voltage and high power semiconductor switching device. it has the advantages of high voltage, high current, low conducting loss, high switching frequency and easy sevies connection. therefore it is suitable for medium - voltage inverters with wide application prospects in the mine
文摘: igct是一種新的理想的中壓大功率半導體開關器件，它具有高電壓、大電流、低導通損耗、高開關頻率、易於串聯優點，因此適用於中壓變頻，在煤礦具有廣泛的應用前景。 -
The electrochemical impedance spectroscopy of nickel electrodeposition indicates that nickel electrodeposition occurs in two steps, the medium frequency inductive loop is ascribed to the relaxation of the electrode coverage by an adsorbed intermediate such as niohads, the low frequency capacitive loop may be due to the inhibition of nickel electrodeposition by adsorbed hydrogen. the mechanism and equivalent circuit of nickel electrodeposition were proposed on the basis of the analysis of electrochemical impedance spectroscopy
不銹鋼電極上電積鎳的電化學阻抗行為表明氨絡合物體系鎳電沉積過程是二次放電過程，中頻感抗弧是由於中間吸附產物nioh _ （ ads ）的弛豫現象引起，低頻容抗弧可能是由於吸附氫原子對鎳結晶的阻滯作用引起，依據實驗結果提出了氨絡合物體系鎳電沉積的反應機理和等效電路模型。 -
During this process electrons will not only lose energy for self - radiation, but also gain energy from induced absorption. on the basis of analyses, the radiation with low frequency by relativistic electrons will form rayleigh - jeans spectrum in optically thick medium
由等離子體中輻射譜計算公式得到，在光學厚的介質中麥克斯韋分佈的極端相對論性電子產生的同步加速輻射譜為瑞利?金斯譜。 -
For few domestic and international studies of the radio propagation in the overburden of the earth ' s crust, this paper theoretically stresses the propagation problem of low frequency radio wave, including slf wave and vlf wave, in the medium and briefly introduces the theory of scale model testing method
針對國內外有關電波在地殼覆蓋層中傳播研究工作的空白，本文主要從理論上討論低頻（包括特低頻和甚低頻）無線電波在該種介質中的傳播問題，並簡要介紹縮比模型測量理論。 -
The general statistical results of the study indicated that chinese high school students in general employed a variety of learning strategies to study english at a medium frequency level. compensation strategy, metacognitive strategy and cognitive strategy received relatively higher level of usage, while memory, affective and social strategy were reported to be used less frequently. to find out whether there is any difference in strategy use among high, middle and low proficiency students, anova was employed to analyze the variance of learning strategies among groups of different proficiency
在比較高中低分組策略運用和高考成績之間的關系時，我們發現高考成績高分、中分和低分組的學生在使用認知、補救、元認知、社會策略時有顯著差異，英語成績高的學生在使用這些策略的頻率上顯著高於低成績組的學生，而在記憶策略和情感策略的運用頻率雖無顯著差異，但也是高分組高於低分組。 -
But it is gas medium with compressibility and low viscosity that leads to low natural frequency, small damping ratio, low positional precision and rigidity, bad low speed characteristics, which limit the application of pneumatic servo technique
但因為氣體的可壓縮性和低粘性，導致氣壓伺服系統固有頻率低、阻尼比小、定位精度和定位剛度低、低速性能差，使得氣壓伺服技術的應用受到限制。 -
For medium or long distance underwater acoustic communication, the narrow bandwidth and low carrier frequency only supports low bit - rate signal transmission
對于中、遠距離的水聲通信而言，水聲通道的窄帶寬、低載波頻率特性只能支持較低的信息傳輸速率。 -
In the parling process, the viewpoint that the initialized energy can be classified into medium - frequency energy and low - frequency energy is proposed. and it is pointed out that the medium - frequency energy is useful for inverter starting but the latter is harmful. tow novel starting methods are put forward in the paper
串並聯逆變器啟動前必須預充一定的初始能量，但並非任何形式的初始能量都對啟動有利，本文對預充的初始能量進行了分解，提出了中頻能量與低頻能量的概念，並證明了前者是啟動必不可少的條件，而後者反而對啟動有害。 -
The radar medium frequency receiver employ digital signal process algorithm, makes use of flexible digital chips, such as cpld, fpga & special dsp. it take on the advantage of small cubage, low weight, cheapness, simple configuration, modularization. and it takes on the all advantage of digitalization
雷達中頻數字接收機採用數字信號處理演算法，使用易於實現演算法的fpga 、 cpld或專用的dsp晶元，體積小，重量輕，造價低，結構簡單，易模塊化，系統配置更新快，維護升級方便，具有數字化的優點。 -
A medium frequency - small size vector hydrophone of co - vibrating type is wrapped with low density compound material and in shuck only one piezoelectric ceramic accelerator is used for each channel to measure the vector components of the underwater acoustic field
摘要中頻小型同振式矢量水聽器採用低密度復合材料作為矢量通道外殼、壓電加速度計作為內部振動傳感器，以拾取水下聲場中的矢量信息。 -
Using calli as explants, the transformation frequency could be greatly improved. using low ph medium ms to activate agrobacterium, and when its concentration is about od0. 3 ~ 0. 7, are the best conditions for inoculation
Zing l活化農桿菌可提高轉化效率； as可顯著提高轉化效率，其濃度以20t時效果最好；菌液濃度對轉化效率也有影響，以od 。
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