直射聲波 的英文怎麼說
中文拼音 [zhíshèshēngbō]
直射聲波
英文
direct sound wave-
The le - an oil field is located on the southern slope of dong - ying sag. there are two sets of ek basalt in its western block. depending on the drilling, the logging and the seismic date, tha ek basalt has the characteristics of high resistancs, the low sound wave defferance and faradic conductance, the smooth curve of self potential
樂安油田位於東營窪陷南斜坡上，其西區發育了兩套孔店組玄武巖，根據鉆井、測井、地震資料，孔店組玄武巖具有電阻率高、聲波時差值和感應電導率值低、自然電位曲線平直的特點，地震波呈板狀強反射；沉積期該區有有二次火山活動，玄武巖平面分佈比較穩定，噴發方式為「裂隙式噴溢」 ，火山口分別位於草12和草31井附近。The types of the detection equipments and apparatus are over 100, such as x - ray detector, r - ray detector, digital ultrasonic flaw detector, eddy current flaw detector, eddy current flaw detector, magnetic memory metal diagnostic instrument, acoustic emission testing an analyzing system, three - dimensional ultrasonic testing system, microcomuterhydraulic pressureniversal testing machine, metalloscope, portable direct - read spectrograph, have achieved the national advanced technology
擁有各種檢測設備100多套，如射線探傷機、數字式超聲波探傷儀、渦流探傷儀、磁記憶金屬診斷儀、聲發射檢測及分析系統、三維超聲波檢測系統、便攜式直讀光譜儀、微機式液壓萬能試驗機、金相顯微鏡等，達到國內先進水平。The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble
系統採用電臺的電視伴音調頻信號，其中電臺信號與伴音信號功率之比基本為10 ： 1 ，並且目標散射信號較弱，一般情況下淹沒在雜波和機器熱噪聲之下，採用常規的脈沖檢測方法很難對遠距離的目標進行檢測，而以電臺直達信號作為參考與目標回波信號進行相關檢測；系統中信號的相關處理會產生旁瓣，而強目標的旁瓣會影響附近的弱目標檢測。The world consumption value of lithium tantalate wafers was estimated at us $ 150 million. until last year, 3 - inch wafers dominated the market demand. however, 4 - inch wafers will overtake this year due to change in production requirement for rf saw filters
直到去年底三英寸晶片仍居市場的主流；然而在射頻聲表濾波器製程上的殷切需求下，今年度四英寸晶片的產量成長將會超過三英寸晶片成為主流產品。Through the theory of light radiation and intensity, we can use the fewest leds to satisfy the luminous intensity demand. through image segmentation theory, we can accurately pick module up from the test stripe when it is put in wrong directions. through image processing theory, we can acquire correct information and avoid the bad effects from the asymmetric chemistry reaction and instability of the devices
用光的輻射和強度理論，我們計算出了獲得足夠圖像強度所需的最少光源;用圖像分割理論，我們在試紙條傾斜放置或有垂直方向上的偏移時，準確地提取出了各模塊的數據;用平滑濾波和均值濾波理論，我們濾除了由於反應不均勻及硬體設備不穩定帶來的噪聲;用交遇區設計線性分類器的方法，我們降低了有限樣本設計線性分類器帶來的誤差，提高了檢驗準確度。The sun might blaze overhead, the air be without a breath, the surface smooth and blue, but still these great rollers would be running along all the external coast, thundering and thundering by day and night ; and i scarce believe there is one spot in the island where a man would be out of earshot of their noise
陽光直射下來，周圍沒有一絲兒風，蔚藍的海面上波平如鏡，但沿海岸邊卻仍是波濤滾滾，日夜喧嚷。我想整個島上是無處聽不到這種浪花飛濺的響聲的。Recommended practice for ultrasonic pulse - echo straight - beam tesing by the contact method
接觸式超聲縱波直射探傷方法With the tom set up vertically, sound waves hit the floor and bounce back into the bottom head. angling a tom slightly causes sound waves to scatter, and diffuses them
落地桶鼓垂直擺放，聲波碰到地板反射回底鼓皮。輕微調節落地桶鼓的擺放角度使聲波散射和漫反射。The company s research was handsomely rewarded when the crystal growth team managed to produce its first 4 - inch ingot only one month after the arrival of new crystal puller. this first ingot weighing 6 kg is a 36o y - rotated cut crystal which is the most commonly used in rf saw applications
這支36 ? y軸旋轉切型的晶棒，是現在手機內部射頻聲表濾波器最常用的切型，其重六公斤，四英寸直徑的可用部分超過80毫米長度，可以加工出100片以上的拋光片。From the point of kinematics and dynamics, the author analyses the propagation rules of stress waves in concrete, namely time - space relations, wave amplitude attenuation, dispersion effect and characteristics of transmission of reflected waves and acoustic waves. combining with engineering practices, the author also concluded the main points of low strain detection of integrity of longdiameter underwater cast - in - situ piles, and pointed out that comprehensive and relational utilization of reflected waves method and acoustic wave transmission method can accurately evaluated the integrity of pile shaft and then improve the reliability of detection. 6figs., 3refs
從運動學和動力學角度，分析應力波在混凝土中的傳播規律：時空關系、波幅衰減、頻散作用以及反射波與聲波透射的特點，結合工程實踐，總結大直徑水下灌注樁低應變檢測的工作要點，指出綜合、合理運用反射波法與聲波透射法，可以較準確地評價樁身完整性，提高檢測結果的可靠性.圖6 ，參3Recommended practice for immersed ultrasonic testing by the reflection method using pulsed longitudinal waves
液浸式超聲縱波直射探傷方法In the second part, the new method is compared with the old one in such aspects as system structure and signal processing methods. in the third part, the properties of dsss and lfm systems, especially the echo signal correlation processing of the systems are discussed. the last part are the respective analyses of water - pipe simulation experiment results and the trial results in zhong yuan oil field
本文首先介紹了超聲測距的基本原理，分析了通道的聲傳輸特性；接著將傳統液位測量方法和新型液位測量方法的系統構成和信號分析處理方法做比較；然後對系統的發射信號（直接序列擴頻信號和線性調頻信號）的特點進行了研究，並著重討論了回波信號的相關處理；最後對水管模擬實驗測量結果和油田實地測量結果分別進行了分析和討論。In view of the importance of rf front - end circuits in the receiver system, the paper finally is focused on the analysis and design of the rf front - end circuits, including the design of low noise amplifier ( lna ), microstrip filter and balanced mixer. all the circuits above are simulated individually using ansoft serenade, and the results are satisfying with the desired performance
考慮到射頻前端電路性能的好壞會直接影響到整機的性能，文中還重點論述了該接收機射頻前端電路的分析和設計，主要包括低噪聲放大器、微帶濾波器和單平衡混頻器的理論分析和實際設計，並在ansoftserenade環境下進行了模擬模擬，模擬結果符合設計要求。Standard specification for straight - beam ultrasonic examination of steel plates
鋼板的直射束縱向超聲波檢驗Methods analyze on different characteristics among transverse wave, vertical wave and surface wave and apply, a slope method to judge the first - arriving - time
方法運用多波分析技術，通過分析超聲厚度檢測中橫波、直達縱波、反射縱波的不同傳輸特性，提出了斜率法判別反射波的起跳時間。分享友人