噪音封閉 的英文怎麼說
中文拼音 [zàoyīnfēngbì]
噪音封閉
英文
sound proof enclosure-
Introducing the theory and application of boundary element method on the sound radiation, giving the process of solving vibration noise radiation problem using boundary element analysis software ; presenting the coupling theory and the combination analysis of finite element method and boundary element method, and doing relevant analysis based on close drum shell ; programming the noise data simulation program using the numerical calculation software, simulating the acoustic and pressure data of a key point in the transient response acoustic field of the close drum shell, realizing the audibility of the noise, using the virtual reality tools to simulate the vibration noise of the drum shell ; combining the finite element method and boundary element method to analyze the vibration noise radiation of some gear box, and completing the whole simulation process of the vibration noise of the gear box
綜合介紹了邊界元法在聲輻射問題上的理論及應用；並給出了運用邊界元法分析軟體求解振動聲輻射問題的過程。闡述了有限元法和邊界元法的耦合理論及組合分析方法，並以封閉鼓形薄殼為分析對象進行了相應的分析。利用數字計算軟體編制了噪聲數據模擬程序，並模擬了通過組合方法分析封閉鼓形薄殼瞬態響應聲場而獲得一關鍵點的聲壓數據，實現聲音的可聽化，隨后通過虛擬現實工具實現了該情形下橢球殼振動噪聲的虛擬模擬。Driver ' s position : optimised layout, based on the latest ergonomic principles, considerably reduced vibration and noise, throunh insulating the operator ' s compartment from the vehicle itself by means of shock absorbes, seat adjustable to operator ' s height and weight, as well as being spring suspended and hydraulically damped. lindedouble pedal control system offers accurate reversing without. changing gear. linde central control lever operates all mast functions
駕駛室:根據人機工程學原理對駕駛室進行了優化設計.駕駛室與車身之間由減震墊隔離，大大地降低了震動和噪音，司機座下有彈簧和液壓減震裝置，並可根據駕駛員的身高和體重進行調整，以獲得最舒適的狀態.林德雙踏板控制系統具有無需切換即可實現靈敏向的功能:林德集中控制桿控制門架的提升，下隆和傾斜動作.發動機的轉速可根據提升和其它功能對輸出功率的需要而自動調節.護頂架與司機座聯成一體，並可裝配成舒適的全封閉駕駛室2. after the electromagnetic coil has been vacuum and sealed in, then coverd the insulation shield, in order to increase heat conduction capacity and machinery strenth, conteol temperature rise and buzzer noise, and resist dampness and 8kv crest voltage thunder strucked
2電磁線圈真空浸漆封閉后再套絕緣護套，即了熱傳導能和和機械強度，抑制了溫升和蜂鳴噪音，抗潮防濕，可抗擊8kv峰值的雷擊電壓。Zy series vibrated filter is one of precised powder griddle, low noise, high efficiency, need only 3 ~ 5 minutes to rapidly replace the griddle, all closed structure. used to filter particles, powder and mucilage
Zy系列三次元振動篩是一種高精度細粉篩分機械，具有噪音低、效率高、快速換網只需3 ~ 5分鐘，全封閉結構，適用於粒、粉、粘液的篩分過濾。Based on the narration of discount of close - ended fund and its theoretical interpretation, this article discovers the effect of investor ' s emotion on the discount through an empirical research, puts forward some brief suggestion on lowing the noise of financial market and promoting the development of close - ended fund
在闡述封閉式基金折價現象及其相關理論解釋的基礎上，通過實證研究發現了投資者情緒對中國封閉式基金折價交易產生影響的證據，簡要提出了降低噪音，促進封閉式基金發展的思路。1 noise : the greatest volume of noise normally occurs on straight sections when trains pass at their highest speed. whereas noise from mrt trains is masked by the background noise of heavy daytime traffic, at nighttime the level of noise is significantly more obvious. on curved sections and cornered sections and on sections close to stations, the impact of noise on the neighborhood is much lower
以列車行進于地下隧道段時，輪軌滾動噪音經封閉空間所傳回車廂，使乘客感受到的噪音，與列車行駛于平面、高架及出土段時，沿線非乘客感受到的移動式空傳噪音最為迫切有待解決之課題；分享友人