In the experiments, the accelerometer and the microphone are used respectively to measure the acceleration on the panel and the sound pressure in the cavity. Piezoelectric ceramics Transducer is used as the control source to control reverberant sound field transmission through a simply supported rectangular aluminium panel into a concrete cavity.

實驗中采用加速度計和話筒作為傳感器拾取板振動的加速度和閉空間內(nèi)的聲壓信號青春小仙女jk白丝喷白浆，用壓電陶瓷片作為振動控制源來控制混響聲場通過簡支矩形鋁板向混凝土閉空間的聲傳入黄片AA片播放久久久。

A photonic crystal-air interface or line defect is utilized as a holophote or a partial reflective mirror to design a paralleled plane cavity, a single ring cavity structure and a multi-ring cavity structure. The method has simple design idea, good integration and wide application; by adopting the method, the self aligning photonic crystal lasers with different wave bands can be designed according to the luminescent characteristics of different materials; particularly, the utilization of semiconductor materials to design a light source of optical communication wave bands has more important practical value.

利用光子晶體-空氣界面或線缺陷作為全反射或部分反射鏡設計平行平面腔、單環(huán)形和多環(huán)形腔結(jié)構(gòu)免费视频A片在线；該方法設計思路簡單国产在线黄色网站，集成性好，適用范圍廣a片一区二区在线免费播放，可根據(jù)不同材料的發(fā)光特性設計不同波段的自準直光子晶體激光器免费毛片一区，特別是用半導體材料設計光通訊波段的光源器件具有更重要的實用價值。

This paper calculated displacement formula in the uniform elastic medium under the action of the ball cavity source and analyzed the impact of the various factors.

通過計算得到了均勻彈性介質(zhì)中的球腔震源作用下的位移公式久久精品国产这里只有精品，并分析了影響球腔震源子波的各個因素99re在线观看视频。

According to heat load source of die cavity, temperature distribution gradient equations and heat flux equations and the peak value equations of temperature load at die cavity surface have been obtained with research of temperature distribution and transfer laws of die surface by unsteady heat transfer theory.

摘要根據(jù)鍛模型腔熱負荷來源，通過非穩(wěn)態(tài)傳熱理論色综合加勒比一本无码，分析研究了模具工作表面層的溫度分布與傳遞規(guī)律在线国产馆，給出了型腔表面溫度分布梯度和熱流密度公式，并給出了鍛模型腔表面的溫度負荷峰值的計算公式欧美乱伦视频网站。

According to heat load source of die cavity, temperature distribution gradient equations and heat flux equations and the peak value equations of temperature load at die cavity surface have been obtained with research of temperature distribution and transf

摘要根據(jù)鍛模型腔熱負荷來源国产福利在线观看，通過非穩(wěn)態(tài)傳熱理論，分析研究了模具工作表面層的溫度分布與傳遞規(guī)律视频高清在线看日韩精品免费，給出了型腔表面溫度分布梯度和熱流密度公式国产亚洲日韩精品超碰，并給出了鍛模型腔表面的溫度負荷峰值的計算公式。

According to heat load source of die cavity, temperature distribution gradient equations and heat flux equations and the peak value equations of temperature load at die cavity surface have been obtained with research of temperature distribution and transfer laws of die surface by unsteady heat transfer theory.

新聞摘要：根據(jù)鍛模型腔熱負荷來源欧美性爱网站地址，通過非穩(wěn)態(tài)傳熱理論午夜a一级毛片视频网站在线免费观看，分析研究了模具工作表面層的溫度分布與傳遞規(guī)律，給出了型腔表面溫度分布梯度和熱流密度公式欧美偷拍视频xxxx，并給出了鍛模型腔表面的溫度負荷峰值的計算公式老熟妇伦乱一区二区。

A compact super-radiant optically pumped D2O gas Terahertz laser was developed, it consisted of pumping source, laser cavity, measurement and vacuum system, and the length of laser cavity could be changed in the range of 80-150cm.

實驗中使用了范圍在80-150cm的可變長度的THz激光工作腔，實驗得到了波長為385μm(對應頻率約0.78THz)人人摸时时操天天爽人人插，脈沖寬度為100ns免费av黄色录像免费的黄色录像，峰值功率百瓦量級的THz激光脈沖信號輸出。4一级黃色视频一区二区三区。

A compact super-radiant optically pumped D2O gas Terahertz laser was developed, it consisted of pumping source, laser cavity, measurement and vacuum system, and the length of laser cavity could be changed in the range of 80-150cm.

實驗研制了一種緊湊型工作腔長可變的超輻射光泵重水氣體THz激光器系統(tǒng)自拍偷拍亚洲精品，激光器系統(tǒng)由泵浦源TEA-CO2激光器一级aa片视频、D2O氣體分子THz激光工作腔、測量系統(tǒng)以及真空系統(tǒng)組成在线人成。

You see that especially the pro-" and a "two-Taiwan" for the music tone, and in the narrative part of Hebei and learned the folk music of the material;"a new look to the motherland," the use of the Xinjiang Uygur music, and in the cavity source Also cleverly Roujin the Yi people in Yunnan folk song tone;"a good example to learn from Lei Feng", while China is old and the new Song of the Song of the inheritance and development;"Tibetan children miss Premier Zhou is the Tibetan 〔〕 Langma Fujian Key Nanqu〕 things both clever combination of music .......

如《看見你們格外親》欧美大片免费网站黄，是以&二人臺&的音樂為基調(diào)，而在敘事部分又汲取了河北民間說唱音樂的素材免费观看色视频网站；《祖國一片新面貌》運用了新疆地區(qū)維吾爾音樂節(jié)奏，而在腔出處又巧妙地揉進了云南彝族民歌音調(diào)黄色网站男人天堂；《學習雷鋒好榜樣》www.操逼.com，則是中國舊軍歌與新軍歌的繼承和發(fā)展；《藏族兒女懷念周總理》是藏族〔朗瑪〕與福建〔南曲〕東西兩地音樂的巧妙結(jié)合……爽到高潮嗷嗷嗷叫视频软件。

5Ns. The peak position of N band emission as well as the distinct emission region slightly moves towards the open end of the cylindrical cavity, and this does not happen to O band emission. Radiation transport efficiency of 6% is obtained for the φ400×1200um cylindrical cavity heated by x-ray source with radiation temperature of 118 eV.

從時間分辨的X光強度軸向空間分布來看不卡性爱视频，在較長時間（約1～1.5ns）內(nèi)，O帶X光在整個觀測縫對應的軸向范圍之內(nèi)均有較大的輻射強度国产专区双飞，在X光強度空間分布的變化過程中欧美精品午夜一级，其強度峰值的空間位置基本不變；而對N帶X光无码毛片视频在线看，則只在較短時間（約0.5ns）內(nèi)91超碰人人操，在整個觀測縫對應的軸向范圍之內(nèi)可觀測到X光輻射，但只在靠近輸運源約300μm的范圍內(nèi)有較強發(fā)射人人干人人操黄色，在柱腔末端600～700μm范圍之內(nèi)的輻射則很弱九色9se在线视频，N帶X光輻射軸向空間分布曲線的峰值位置在朝柱腔末端的方向移動，移動量大約為130～250μm欧美爱爱视频一区二区。