drum box 中文意思是什麼
drum box
解釋
滾筒箱-
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。 -
Packing : packed in plastic drum, each net weight 5 kg, then packed in wooden box, each box net 10 kg, 2 drums per wooden box
包裝：塑料桶包裝，每桶凈重5公斤，裝入木箱中，每箱凈重10公斤，每箱2桶。 -
The china permanence mainly manages a male equipments ( printer, duplicator, facsimile machine, order money machine, ground paper machine ), computer accessories ( main plank, memory, get rid of only, cpu, machine box power supply, keyboard, mouse ) and print to consume a material ( ink box, selenium drum, powder tube, ink ) to process ( jewelry jewel box, metals frame, the gilt puts a piece ) with handicraft product etc. business
中科永久主要經辦公設備（印表機，復印機，傳真機，點鈔機，碎紙機） 、電腦配件（主板，內存，光驅， cpu ，機箱電源，鍵盤，鼠標） 、列印耗材（墨盒，硒鼓，粉筒，墨水）和工藝品加工（珠寶首飾盒，金屬相框，鍍金擺件）等業務。 -
This is a newly introduced slight shocking, direct driving centrifugal hyro - extractor. the electric locomotive on its base is semi - closed, internal ventilating, self cooling, weight adding and energy saving. the internal drum and rotational drum are istalled on the axel of the locomotive and drived directly, which effectively decreases energyloss, and simplifies therotation. acontrolling box is used in the machine to start through frequency conversion. and stop through resistance. the showing board shows the rotation speed and adjusts the speed and time. the featues of this machine areenergy saving, durable and repair infrequent. this machine is spcially used for cloth hydroectraction
本機系最新引進直微震直驅式離心脫水機，它使用半封閉內通風自冷加重型專用節能電機裝于中間底座，內桶及轉鼓裝于電機軸而直接驅動之，有效地減小了多功能損耗，簡化了傳統的多級繁瑣轉動，本機配有一個電控箱機變頻起動，電阻剎車於一體面板有轉速顯示並可調速度及時間，該機特點省電、耐用、維修機會極少，本機適合布匹脫水使用。 -
The rigs indlude special carrier ( developed by our company ), engine, hydraulic transmission, right angle gearbox, single ( double ) drum drawwork, rotary table transmission box, hydraulic drawworks, front and rear supporting frame, double - section hydraulic telescopic mast, crownblock, travelling hool, weight indicator, hydraulic, pneumatic and electrical system, etc
專用底盤為載車，由專用汽車底盤、發動機、液力變速箱、角傳動箱、單（雙）滾筒絞車、轉盤傳動箱、液壓絞車、前支架、后支架、雙節液壓伸縮式井架、天車、游車大鉤、指重表、液壓系統、氣路系統、電器系統等組成。
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