聲源輻射功率 的英文怎麼說
中文拼音 [shēngyuánfúshègōnglǜ]
聲源輻射功率
英文
radiation power of sound source- 源 : 名詞1. (水流起頭的地方) source (of a river); fountainhead 2. (來源) source; cause 3. (姓氏) a surname
- 輻 : 名詞(車輪中車轂和輪圈的連接物) spoke
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 功 : 名詞1 (功勞) exploit; merit; meritorious service [deed]: 戰功 military exploits; 立功 render me...
- 率 : 率名詞(比值) rate; ratio; proportion
- 輻射 : radiation; exposure; radio; beaming
-
Here a number of factors must be taken into consideration, such as the environmental standard of the area where the engine room is located, the fender structure of the engine room as well as the engine type, power level and the cooling air volume, etc. the core of the overall control is the concept of " equal sound insulation ", which means to apply a closed fender structure to isolate the engine unit from outside parts so as to cut the outward sound radiation
經過多年來與環保部門的合作,對油機房進行消噪聲處理,積累了一些治理經驗,主要是必須根據具體的機房項目來確定相應的控制方案,這其中應考慮機房所在區域的環境標準,機房圍護結構形式及油機機型、功率、冷卻風量等因素。綜合控制的核心是等隔聲概念,即用一封閉的圍護結構將機組與外界隔離開來,減少聲源對外的聲輻射。The receiver works on active mode and passive mode in different time. in active mode, the receiver is narrow - band and high sensitive, and if phase - lock technology is used to stabilize receiving frequency. and in passive mode, the receiver is an all - power millimeter wave radiometer with periodic calibration to improve measure precision
此接收機採用分時工作體制,在主動工作方式時為窄帶的高靈敏度毫米波接收機,接收機中採用中頻鎖相技術,簡化了毫米波鎖相帶來的困難;在被動工作方式時為全功率型的毫米波輻射計,這種輻射計在每次測量后都採用兩個標準源對輻射計定標,實現周期定標,消除因系統增益波動和有效本機噪聲波動帶來的測量誤差,提高測量測量精度。
分享友人