超短聲波 的英文怎麼說
中文拼音 [chāoduǎnshēngbō]
超短聲波
英文
ultra short sound wave-
Osteoarthritis or rheumatoid arthritis treatment may involve electrical modalities e. g. short wave diathermy, interferential and ultrasound, traction, mobilization, manipulation, ice and hot treatment and some special exercises
電療如交錯干擾中波電療和高壓間動電療，熱療如短波電療及熱敷等超聲波電療牽引療法俗稱拉腰拉頸手力治療水療冰療，運動及預防方法。With the purpose that people in countryside and rural area can listen to the sounds of communist party and chinese government, “ xi xin project ” has been carried out state general bureau of the radio and television and set up tens of 500kw sw radio transmitters, ten of them were installed, whom were th558 with find power amplifier, a kind of ultrahigh power mental - ceramic tetrode from french thomson company
為使我國廣大農村和邊遠山區群眾能聽到黨和政府的聲音，國家廣播電視總局組織實施了「西新工程」 ，部署了數十部500kw短波廣播發射機，其中十部的末級功率放大管採用法國湯姆遜（ thomson ）公司生產的th558超大功率金屬陶瓷四極管。The results of the study show that, when compared with the reaction intensified with mechanical agitation, low - frequency ultrasonic wave can greatly promote the ester exchange reaction and shorten the reaction time
研究結果表明，與機械攪拌增強反應比較，低頻超聲波可以大大強化酯交換反應過程，縮短反應時間。On the design of the system, the thickness measure system of mems chip is built based on lbu and pump - probe technology. on the analysis of data, the reflectivity curve is analyzed using the law of reflectivity change induced by ultrasound, and the thickness is calculated using the system designed by the article, to aluminum film the size of about 20nm can be measured, when the film be measured is single layer, the relative error of the system is less than 2 %, when the film be measured is double layer, the relative error of the system is less than 10 %
在基礎理論方面研究了激光（特別是超短脈沖激光）超聲的激勵機理，探討了激光調制技術以提高系統信噪比，闡述了泵束探針束技術及相關實驗設置；在系統設計上，以激光超聲為基本原理，以泵束探針束技術為系統設計方案完成了mems基片厚度測量系統的設計；在數據分析方法上，利用聲致光反射率變化的一般規律對測得的光反射率曲線進行分析，確定超聲回波在薄膜兩界面間來回傳播的時間，以計算薄膜的厚度。The following technologies such as mcu 、 rf communication 、 ultrasonic distance measuring are integrated in the system which has the functions of real time measuring in the watch sites and real time display in the receiving facilities
該系統綜合應用了單片機技術、短距離無線通信技術、超聲波測距技術，具有監測點距離實時測量、遠端接收設備實時顯示等功能。The very short wave lengths of ultrasound make a great difference in what ordinary sound waves can do
超聲波的波長極短，其功能與普通聲波相比大不相同。The optimum conditions of preparation were as fellows : the concentration of zinc sulfate solution of 1. 8 - 2. omol / l, the concentration of ammonium bicarbonate solution of 1. 4 ~ 1. 6mol / l, the time of ultrasonic radiation of 25 ~ 30min. iv. preparation of active zinc oxide by means of microwave radiation to calcine precursor of basic zinc carbonate firstly, and a mechanism on preparation of ultra - fine active zinc oxide by means of microwave radiation has been investigated emphatically as well as the effects on quality of ultra - fine active zinc oxide have been analyzed and discussed in detail, the time of microwave radiation was 7 ~ 16 min ; comparing microwave radiation calcining with conventional calcining, the calcining time of microwave radiation was one thirty to one twenty, the calcining time shortened hugely, energy consumption saved hugely, the quality of product improved
首次引入超聲波輻射制備超細活性氧化鋅前驅體堿式碳酸鋅新技術，研究了超聲波輻射制備前驅體堿式碳酸鋅的機理，並分析和討論了影響前驅體質量的各種因素，確定了最佳的前驅體制備條件為：硫酸鋅濃度為1 . 8 2 . 0mol / l ，碳酸氫銨的濃度為1 . 4 1 . 6mol / l ，超聲波輻射25 30min ； 4 、首次採用微波加熱煅燒前驅體堿式碳酸鋅制備超細活性氧化鋅的新技術，研究了微波輻射加熱煅燒前驅體制備超細活性氧化鋅的機理，並分析和討論了影響活性氧化鋅質量的各種因素，確定了最佳的超細活性氧化鋅制備條件為：微波加熱煅燒時間為7 16min ，與傳統煅燒方法相比，煅燒時間僅為傳統的1 30 1 20 ，大大縮短煅燒時間，節省能耗，提高了煅燒產品的質量； 5 、完成了從鋅浮渣中制備超細活性氧化鋅的小試試驗和擴大試驗。Besides policy factors, five methods of cost - cutting of biodiesel are reviewed, including new raw material with higher oil content, shorter regeneration cycle, which is suitable for infertile soil and different climatic conditions ; heterogeneous catalysts ; new technologies ( e. g. supercritical methanol and ultrasonics ) ; higher added value utilization of by - product glycerin with simple method ( propylene oxide chloride, 1, 3 - propanediol, pyruvic alcohol etc. ) and moderate scale of production
摘要綜述了除政策因素外，降低生物柴油生產成本的5種方法：選擇含油率高、再生周期短、適應貧瘠土地及不同氣候條件的新型植物原料；研究新型固體催化劑；引入新工藝（超臨界法和超聲波法） ；使用比較簡便的方法將廢棄的甘油轉化為高附加值的產品（環氧氯丙烷、 1 ， 3 -丙二醇、丙酮醇等）以及適度生產規模等。These ultrasonic oscillations may be continuous, but in most cases they are short bursts of ultrasonic energy, stimulated by various amplitude peaks of the audible signal, and dying out quickly, but recurring frequently
這些超聲波震蕩可能是連續的，但大多數情況下，它是由可聽范圍信號電平的不同峰值激勵產生的一些超聲能量的短脈沖，很快消退但頻繁的出現。In this thesis, the basic theories of ultrasonic distance measuring and short distance communication are reviewed at first. and then the hardware and software design of the system ’ s every part is introduced in turn. at last, the debugging process and the results of different circumstances are provided
本文首先回顧了超聲波測距和短距無線通信的基本原理，然後依次介紹了系統各個部分的硬體設計和軟體設計，最後就系統的軟硬體調試和實地測試給出了不同情況下的實驗結果。And the results showed that the supersonic extraction could shorten the extraction time greatly, which could have the same effect for 40min as the traditional way of 48h
本實驗還對超聲波在羔羊凝乳酶提取中的應用進行探討，結果表明，超聲提取可大大縮短提取時間，超聲提取40min可達到傳統方法48h的提取效果。In this thesis, an ultrasonic anti - collision system can be used in garage or when airplanes moving on ground is introduced, which is based on radio frequency ( rf ) technology. the system also has short distance wireless communication function
本文提出了一種基於射頻（ rf ）技術、具有短距離無線通信功能、應用於機庫內或飛機作地面移動時的超聲波防撞系統。Rthk was the host broadcaster for the world trade organization 6th ministerial conference and a special wto channel was operated during the conference with the use of fm and dab technology to relay in - house meetings and events to the community. in the same month, a four - day outside broadcast at the hk brands and products expo was conducted
香港電臺擔任世界貿易組織第六次部長級會議的東道主廣播機構會議期間特設立世貿會議頻道，採用超短波和數碼聲頻廣播技術向市民轉播世貿內務會議和各項盛事，並於同月為香港工展會進行四天外勤廣播。分享友人