acoustic load 中文意思是什麼

acoustic load 解釋
聲波負載
  • acoustic : adj. 1. 聽覺的;聲學的。2. 助聽的;傳音的。3. 原聲的,不經過電子設備傳聲的。adv. -tically 在聽覺上;在聲學上。
  • load : n 1 裝載,擔子;負擔;工作(負荷)量。2 (車船等的)裝載量;一馱,一車,一飛機。3 【電、機】(機...
  1. Advanced weaponry and new tactical capability and communications combined with an increased weapons load of mark 48 anti - submarine torpedoes, harpoon missiles and tomahawk cruise missiles, which allow seawolf to operate from under arctic ice to shallow water close to shore. the seawolf was a product of the cold war, conceived to maintain the usa acoustic advantage over soviet submarines. with the end of the cold war and the change of emphasis to littoral operations, the cost of the seawolf submarines was judged prohibitive and the programme was curtailed in favour of the smaller and cheaper virginia class new attack submarines

    「海狼」級擁有強大的攻擊力:為了能夠獲得並保持戰場的主動權,該艇裝備有8具660mm魚雷發射管,攜帶的武器有: slam陸攻型戰斧式巡航導彈,射程485海里, ssm反艦型戰斧式巡航導彈,慣性制導主動雷達反輻射制導,航速0 . 7馬赫,射程250海里,魚叉反艦導彈,航速0 . 9馬赫,射程70海里mk48adcap魚雷,直徑660mm ,有線制導,航速55節,射程27海里。
  2. Test method for acoustic emission testing of insulated aerial personnel devices with supplemental load handling attachments

    帶附加載荷調節裝置的航空人員隔音裝置聲發射檢驗的試驗方法
  3. Standard test method for acoustic emission for insulated and non - insulated aerial personnel devices without supplemental load handling attachments

    無附加載荷調節裝置的航空人員隔音和不隔音裝置用聲發射的標準試驗方法
  4. Standard test method for acoustic emission testing of insulated and non - insulated aerial personnel devices with supplemental load handling attachments

    帶附加載荷調節裝置的航空人員隔音和不隔音裝置聲發射試驗的標準試驗方法
  5. At present the manufacture of surface acoustic wave use the technology of the final submicron. a series of the devices of low insertion loss, high q saw rayleigh surface acoustic wave resonators or stws that insertion loss has less than 5db, load quality factor ( ql ) is more than 1000 on the quartz piezoelectric with zero of first temperature factor in the research. these difference frequencies are 60mhz, 280mhz, 739mhz and 1ghz of normal frequency and at also surface acoustic wave. using 1. 25db noise factor amplifier, careful design curcuit, good setting printed curcuit board, and using the 1ghz surface transverse wave resonator as frequency element, researching the low phase noise surface acoustic wave with sideband phase noise near ? 120dbc / hz deviating 1khz on carrier, spurious suppress with 80db

    本研究採用一階溫度系數為零的壓電石英基片上製作出損耗小於5db 、有載品值因素( ql值)超過1000的一系列低損耗、高q值聲表面波rayleigh波或stw諧振器,頻率分別為60mhz 、 280mhz 、 739mhz和1ghz等不同頻率的高性能聲表面波諧振器。並採用噪聲系數為1 . 25db的低噪聲系數放大器,精心設計電路,優化設計布置印製電路板,用標稱頻率為1ghz的聲表面波諧振器為頻率控制元件,製作出在偏離載頻1khz處的單邊帶相位噪聲近- 120dbc / hz 、雜波抑制達80db以上的低相位噪聲聲表面波振蕩器。
  6. The specified works finished are listed : 1. with experimental load - displacement curves and acoustic emission technology, it was found that the material shows pseudo - plastic behavior under tensile loads and quasi - elastic behavior under the flexural loads

    通過斷裂試驗的載荷位移曲線和聲發射檢測,發現了該材料的切口試樣在拉伸載荷作用下表現為偽塑性的特徵;在彎曲載荷作用下表現出準脆性的特徵。
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