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。
Huangyan tongli mould factory is a member of the china mould industry association, is a joint - stock factory, is one of the factory which product homemade big and middle high grade mould factory. specialized in producing crust of tv inject plastic mould. autocar plastic mould, motorcycle fittings plastic mould, advanced assemble glue lacquer plastic packing mould and plastic packing bucket 1 litre to 50 litre product. the mould manufacture owe the process capacity hereinafter ten thousand gram. the factorys goal : technology is the first productivity, never stopping technology investment, my company hold the advanced numercial control process center, numercial electrical sparcal moulding machine tool, accordance with the technology of cad cam cae to product mould exploitation. design, process, manufacture
黃巖方山
模具廠是中國
模具工業協會成員，股份制企業，是一家製造國產化大中型優質
模具的企業。專業生產電視機外
殼注塑
模具汽車塑料
模具摩托車配件塑料
模具高級聚膠漆塑料包裝
模具及塑料包裝桶1升至50升製品。其中
模具製造具備1萬克注塑機以下產品的加工能力。
Ever since its birth in 1999, siusing has launched its divisions including siusing button factory, yabo button factory and 2 distributors shanghai hongkong. through unremitting efforts of all staff, we have stepped into an extensive range of products including metallic button, rubber button, environmental friendly buttons, metal button and alloy buttons. meanwhile, the products are exclusively appointed as specially used parts for jeanswest, chibi maruko chan, sickonineteen of europe and tommy bahama, joe eoxer, chicco of the usa, etc
公司自1999年初創業至今，已初具規
模，公司擁有耀升金屬鈕扣廠雅柏天然真
殼鈕扣廠和2間銷售上海香港公司，主要產品有金屬扣膠扣環保天然扣真
殼類和五金合金共五大類成為大陸「真維斯」澳洲「真維斯」 「櫻桃小丸子」歐洲「 sickonineteen 」美國「 tommy bahama joe eoxer chicco 」等著名品牌的供應商。
Besides the above items, we also can make various nameplates, working cards, skipping ropes, paper vertical clips, book binders, stainless & resin crafts and gifts and public direction equipment, etc
另外公司還有生產各種規格的標示銘牌，工作卡套，跳繩，夾紙器，裝訂夾等文具產品，以及塑膠外
殼模具開發及生產等。
By means of carrying out parameterization on finite element model of certain punching - welding bridge housing and through optimization analysis, this paper realized the light weighted optimization design of punching - welding bridge housing under the conditions of letting the bridge housing to satisfy the demands of perpendicular bending rigidity, the perpendicular bending strength and the perpendicular bending fatigue life
摘要通過對某沖焊橋
殼的有限元
模型進行參數化，經過優化分析，使得橋
殼在滿足垂直彎曲剛度、垂直彎曲強度和垂直彎曲疲勞壽命的條件下，實現了沖焊橋
殼的輕量化設計。
With thousands years of diastrophism and human society ' s development, the natural environment of the upper - part of the yellow river has conceived its distinguished zoology and resource structure, therefore forms its special geographic upper - part - yellow river region ' s economy and society development model
黃河上游的自然環境隨著千百年的地
殼運動以及人類繁衍，孕育出了獨特的生態及資源結構，從而也形成了具有區域特色的黃河上游典型地區經濟和社會發展
模式。
In 3d geodynamics numerical simulation research, it is often required to mesh the whole earth or part of the spherical shell, and the size of mesh is much more important to our research
摘要在研究大尺度的三維地球動力學問題的數值
模擬過程中，往往需要對整個球體或部分球
殼生成計算網格，而且網格單元的尺寸對所研究的問題尤為重要。
Such features might result from the rotation movement of the earth crust and exert serious impact on the geotectonic evolution and large scale metallogeny in hunan province and adjacent regions
這種特徵可能是地
殼的旋轉運動所造成，它對湖南及鄰區大地構造的演化、大規
模成礦作用等具有重大的影響。
In this thesis, we research into the geochemical data of the groundwater from the granitoid weathering crust of the fogang granite in baisha region, guangdong province
本文研究了廣東省白沙地區花崗巖風化
殼地下水的水化學特徵，特別是與花崗巖的風化過程有關的稀土元素含量及其分佈
模式。
Through the analysis of the deduction process of harmonic function model, it is illustrated that some hypotheses in the deduction process are unreasonable and the harmonic function can not reflect the objective regularity of the vertical crust movement, so that it isnt an effective method to compile isoline map of the vertical crust movement rate
對有關文獻提出的「地
殼垂直運動調和分析」
模型的建立過程作了全面分析，指出：該
模型建立過程中所做的一些處理是不合理的，由此建立的
模型不是地
殼垂直運動規律的客觀反映，因而尚不足以成為編制地
殼垂直運動速率面等值線圖的可靠手段。
Technical specification for dwelling houses with epsc form latticed concrete wall
水泥聚苯
模殼格構式混凝土墻體住宅技術規程
The technical requirements for the lost pattern made from the paraffin - stearin and the shell mould made from colloidal silica in the precision casting were introduced
摘要介紹用石蠟硬脂酸低溫
模料製作熔
模，用硅溶膠作粘結劑製造
模殼的工藝。
Test method for splitting tensile strength for brittle nuclear waste forms
易碎核廢料
模殼張裂強度試驗方法
The process of lost pattern, colloidal silica and baking was studied emphatically
包括熔
模製造工藝、硅溶膠
模殼工藝和焙燒工藝。
During the restricted hours in designated areas, the use of specified powered mechanical equipment for example, hand - held breakers and dump truck and or the carrying out of the prescribed construction activities for example, erection or dismantling of formwork and hammering is subject to more stringent control
于限制時間內，在指定范圍使用指明機動設備例如手提破碎機及泥頭車及或進行指明建築工程例如搭建或拆除
模殼或錘打均須受到更嚴格的管制。
The alloy component and the process parameters of the precision casting ( including the exit temperature from furnace, pouring temperature, mould preheating temperature, holding time, cooling form ) have a certain influence on the problem of the blade brittles
摘要合金含量、精鑄工藝參數（出爐溫度、澆鑄溫度、
模殼預熱溫度、保溫時間、冷卻方式）對葉片脆性問題存在一定的影響。
Furthermore, to avoid the craze of the target caused by the brittleness of si element, a new mold and cooling method have been developed. in the second part, the material of the resistor coatings has been studied
此外，為了防止靶材的破裂，降低其內應力，自行設計了熔煉
模殼及冷卻方法，有效的解決了靶材的開裂問題，使靶材熔煉的成品率達到90 %以上。
The practice over the past five years shows that the process of shell mould made from colloidal silica in investment casting is mature, which provides the technical support for producing the qualified ceramic shell mould and precise casting
生產實踐證明，鑄造硅溶膠
模殼製造工藝是成熟的，為生產合格
模殼和精密鑄件提供了技術保障。
Large panel framework
外墻鑲嵌大模殼
