pipe pre 中文意思是什麼

The painting almost doubled its pre - sale estimate, putting it within touching distance of the highest price paid for any artwork sold at auction, picasso ' s garcon la pipe, which went for more than $ 104m in may 2004

該畫作幾乎將此前估價翻了兩倍，使之與藝術品拍出的最高價相差無幾? ?畢加索的《拿煙斗的男孩》在2004年5月以超過1 . 04億美元的價格賣出。

Our company is specialized in supplying all kinds of terminal block, switch test double block, ground block, fuse block, three - level sensor block with light, double block, universal block, integral block, nylon cable ties, cable ties, releasable cablle ties, self - locking cable tie, marker calbe ties, flexible pipe, cable marker, expansion nail / plug, wire joint, cable clamp, nail clip, screw on wire connector, self - adhesive tie mount, spiral wrapping band, wire connectors, cable tie mounts, nylon fasteners, cable gland, nylon ties, cable terminal, terminals, terminal connector, wiring duct, pre - insulated terminals, cable markers, electrician tools, cabling accessories, plastic cable ties, wire tie, tie wrap, beaded tie wraps, tie wrap adhesive, tie wrap tool, cable, wires, terminal connector, terminal block, nail, nylon cable glands, pe tubing and quick screw connector, circle nail cable clips, self - adhesive tie mounts, expand nails, spiral wrapping bands, screw on wire connectors, copper connecting terminals, pre - insulated electrician tools, wire connectors, cable tie mounts, nylon fasteners, nylon ties, cable terminal, pre - insulated terminals, cabling accessories, plastic cable ties, wire tie, tie wrap, beaded tie wraps, tie wrap adhesive, tie wrap tool, cable, wires, terminal connector, terminal block, nail, nylon cable glands, cable accessories, wiring accessories etc. we offer superior product and best service with competitive price

我們公司是專門供應各種終端塊，交換機測試雙重座，地面座，保險絲座，三層傳感器座輕型雙座通用塊，積分塊，尼龍電纜聯系，電纜聯系，松解錨索關系自鎖式電纜接頭，光纜標記關系，軟管，電纜標記，膨脹釘/插頭，電線接頭，電纜鉗，夾釘，螺絲電線連接，自粘配合摩，螺旋帶包，導線連接器，線纜配合固定座，尼龍緊固件，電纜壓蓋，尼龍關系，電纜終端，終端，終端連接器，電線導管，預終端絕緣，電纜料，電工工具，電纜配件，塑料電纜聯系，配合鋼絲，為配合劇情，串珠配合纏上搭膠包裹，包裹配合工具，電纜，電線，終端連接器，終端塊，釘，尼龍索腺體，聚乙烯管材及快速接頭螺絲，圓釘電纜夾，自粘配合固定座，擴大釘，螺旋帶包螺桿導線連接器，銅接線端子，預絕緣電工工具，電線接頭，電纜接頭固定座，尼龍拉鏈，尼龍關系，電纜終端，預終端絕緣，電纜配件，塑料電纜聯系，配合鋼絲，為配合劇情，配合串珠包，搭包膠，配合工具包，電纜，電線，終端連接器，終端塊，釘，尼龍腺體電纜，電纜配件，線路配件等，我們提供卓越的產品和最好的服務，具有競爭力的價格

2. design scheme of gravity heat pipe air pre - heater is proposed which fits the actual situation of injecting steam boilers. detailed heat calculation and design on heat recovery of flue gas is carrying out

提出了採用適合於注汽爐實際工況的重力熱管式空氣預熱器的設計方案，對煙氣的余熱回收進行了詳細的熱力計算和設計。

During the construction of the dam foundation cut - off for dalong water control project, the construction techniques adaptable to the construction under the condition with high interference, short construction period and strict quality standard are selected through the related productive experiment, with which the problems such as the prevention and treatment of hole collapse and lowering steel reinforcement cage and pre - embedded grouting pipe into place are solved, and then the successful construction of the cut - off is guaranteed as well

摘要在大隆水利樞紐壩基防滲墻施工過程中，通過生產性試驗選擇出了適合該防滲墻工程施工干擾大、工期緊、質量標準高的要求的施工技術，解決好了孔口塌孔的預防、處理及鋼筋籠和預理灌漿管下設等技術難題，保證了該防滲墻工程的成功建設。

Application of heat pipe type air pre - heaters

熱管空氣預熱器的應用

Heat pipe air pre - heater is adopted to recover gas heat to heat up cold air for burning, reducing flue gas temperature and increasing heat efficiency of injecting steam boiler

採用熱管式空氣預熱器，利用排煙熱量加熱冷空氣，降低了煙氣溫度，減少排煙熱損失，提高注汽爐熱效率。

The main business of company covers onshore and offshore pipeline construction, shield tunneling ， long - distance pipe - jacking, pre - commissioning and etc

公司主營業務為各類介質的陸上與海洋管道施工，隧道盾構與長距離頂管，管線預投產施工等。

Analysis on ground subsidence for tunnel pipe - jacking pre - support

隧道頂管預支護的地表沉降分析

Study on calculation method about settlement of pre - stressed concrete pipe pile composite foundation

預應力混凝土管樁復合地基沉降計算方法研究

There are a lot of advantages when inner trachea applied in air pre - heater, such as the improvement of the temperature of pipe, the low consumption of metal, except for the increment of flow resistance. according to many related papers, it is more proper inner trachea with the structure of short distant between two whorls and shallow depth of whorl. it can enhance heat transfer with smaller flow loss

內螺紋管是一種異形管，和光管相比，管內側的換熱系數大大增強了，應用於空氣預熱器可以起到提高總傳熱系數、節約受熱面金屬消耗量的目的；同時提高了管壁溫度，能夠減輕低溫腐蝕的程度和速度；不足之處是帶來了更大的阻力損失。

Taking some tubular air pre - heater used in one boiler whose capacity is 130 t / h as an example, new blue print with inner trachea is completed by means of computer program. several key design variables may be changed, such as diameter of pipe and velocity of flow of gas. these cases have been considered, and their results have also been compared with each other

比較了幾個重要的設計變量，如外管徑、煙氣流速等參數變化時，總傳熱系數和空預器本體管子總重量，阻力損失以及最低管壁溫度等幾個重要設計結果的變化趨勢，對內螺紋管空氣預熱器的設計具有借鑒意義；其間還分析了內螺紋管與光管在設計時的不同之處；最後，初步分析了內螺紋管的優化設計問題，提出了一些建議。

There come two questions when the temperature of gas is low. one is that metal consumed in air pre - heater is relatively more, due to lower temperature press and heat transfer coefficient. the other is that corrosion of pipe result from so2, which exists in gas

由於煙氣溫度低而產生了兩個問題：一個是傳熱溫壓小，管子所用金屬的消耗量相對比較多；另一個是受熱面的管內側金屬壁面容易出現低溫腐蝕。

The company has 8 departments, 1 office and 15 affiliated centers, including vehicle management center, equipments lease center, shield tunnel construction management center, pipe - jacking management center and pre - commissioning center

公司設8部1室， 15個附屬中心，其中包括車輛管理中心，設備租賃中心，盾構工程管理中心，頂管工程管理中心，預投產工程管理中心等利潤中心。

Abstract : for the square n side pipe, adopting diagonal coefficient method for the pipe roller design, it has the advantage of little procedure of design and no pre - assume parameter as well as calculated easy and accurately

文摘:對正n邊形焊管採用對角線系數法進行孔型設計，具有設計步驟少，沒有預先假設的參數，計算簡便正確等特點。

Automatic control pre - water ball equipment for cement industry - double pipe screw feeder

水泥工業用自動控制預加水成球裝備雙管螺旋喂料機

This thesis focuses on the overall optimal design of pipe parts and head pipe exchanger. an example is also presented to stand for the typical heat pipe heat exchanger ( that is, head - pipe air pre - heater ). the specific details and methods are introduced in the integrated optimal design and the optimal selection for head pipe heat exchangers

本課題就是要針對這一問題，對熱管元件及熱管換熱器整體優化設計進行研究，以氣- - -氣熱管換熱器中典型代表- - -熱管空氣預熱器為例，利用最優化理論，提出了對其進行整體優化設計的方法。

Double wall pipe is being used at this airport for a number of reasons but one major reason is pre - existing contamination

機場用雙層管道有很多原因，其中最主要的原因是預防污染。

Refer to some application examples of inner trachea tubular air pre - heater in power plants it is a good replacement pipe of the old smooth pipe

所以，在用內螺紋管代替光管進行管式空預器的設計時，需要進行全面的核算。