In this paper, the mathematic model of a. c. excited generator system based on field-oriented control is established first. The simulated results operating at no-load and steady state are agreed with the test waveforms by means of 2. 8kW ACEG prototype developed by Harbin institute of large electrical machinery and Zhejiang University.

本文建立了磁場定向控制交流勵磁發(fā)電機系統(tǒng)的數(shù)學模型亚洲精品偷拍第2页，并采用哈爾濱大電機研究所和浙江大學聯(lián)合研制的2.8kW ACEG系統(tǒng)實驗原理樣機小草亚洲无码不卡免费在线观看视，測試美国大片一级又大又粗的黑人。性色av不卡无码中文字幕。国产精品视频你懂的97。

Their principle and construction for a portable low constant temperature trough are introduced and their testing data are given in this paper.

介紹了一種便攜式低溫恒溫槽的工作原理及組成結構4455www看片，并給出了試驗數(shù)據(jù)。

Considering the problems of spurgear precise plastic forming, such as high deformation resistance, poor flowability and especial hardness to fill cant of gear, technological plan was developed based on precise plastic forming technique, successive control principle and consecutive local deformation theory. Moreover, structures of the rolling preform die and the die with up and down wellrounded forcer for stamping-extrusion and bulge-extrusion combining forming were designed too.

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This paper firstly introduces the current state of ASSR system in our country and abroad, and then explains how the ear works and the mechanism of ASSR, including the stimulus, waveform parameter, theory, origins and effections.

本文首先闡述了基于DSP的嵌入式ASSR檢測儀的意義及其國內外研究現(xiàn)狀国产嫖娼妓院视频网站，然后介紹了人耳聽覺原理和ASSR檢測儀的檢測機制sansansy.com，包括ASSR的刺激信號、波形參數(shù)中日欧美野外日一级黄色A片在线日、檢測原理欧美精品理论片大全、產(chǎn)生部位和影響因素。

An automatic tracking system of target based on image is built.

建立了一套基于圖像的目標自動跟蹤系統(tǒng)国产精品美女AV，介紹了系統(tǒng)組成网站视频免黄片大全皮毛大全、設計原理以及算法原理。

The minimum travel-time tree algorithm is one of the main methods to trace rays, which is based on Huygens' and Fermat's principles and can be applied to complex geological model.

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Then the circumfluence R.M.S. compensation method is certified as the circumfluence suppressing scheme after the analysis of the current-averaging and circumfluence suppressing theory.Results of the algorithm validation for this parallel control scheme are also included.

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First, we deduce a formula for vacuum polarization pressure as f ＝ G m M （ r ∕ r ＋ v ∕ c ）∕ r 2 , based on the isotropy of distribution of neutrinos ν0 in the lowest energy state in the physical vacuum, requested by the Pauli exclusion principle. Then, we deduced the metric equation of the general relativity and the equivalence principle according to this formula. Further, we demonstrate that this vacuum polarization pressure is the gravitation in general meaning.

首先從泡利不相容原理要求的在物理真空中最低能態(tài)中微子ν0分布的均勻各向同性出發(fā)，推導出真空極化壓力公式 f ＝ G m M （ r ∕ r ＋ v ∕ c ）∕ r 2 A片毛免费欢看，然后由此公式推導出廣義相對論的度規(guī)方程和等效原理黄色网站在线,好大，并論證此弱作用力的真空極化壓力就是通常意義下的引力。

Heisenberg's uncertainty principle, one of the central tenets of quantum mechanics, maintains that you cannot pin down all the physical properties of a particle at the same time.

量子力學的一個重要原理——海森堡的不定性原理主張人們不能在同一時間定下粒子的物理屬性97国产精品视频。

Week 9 Huygens principle, supposition principle of wave, wave interference, application examples.

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