封頭板 的英文怎麼說

Up - down bisection is an arc, horizontal type. innovative insert plates and fixing bolts are used to fix and seal fosc, and its installation is quite simple

光纜接頭盒外形按弧線型臥式結構設計，上下對開，整體採用創新的插板卡緊結構和少量螺釘固定密封，安裝極為方便。

14. no warranty will be delivered to such consumables as nozzle, cylinder body caulking, washer, seal ring, o - ring, motor brush, capacitor, bulb, fuse, battery, fan, belt, paper filter element, glass sheet, fuel and lubricant

下列消耗品：噴油嘴缸體堵頭，墊片密封圈o型圈電機刷電容燈泡保險熔絲電池風扇皮帶紙濾蕊玻璃板燃油和潤滑劑。

Series full - auto pipe expander with drawing device and program interface is used with extruding machine. it is also used solitarily, while expanding pipes, the machine adopts translation, the action is steady and corret, it does not damage pipe materical, the machine adoptes double - infrared heating oven type, each oven is equipped with heating cire, the shaping method adopts expanding - end shaping, the size of pipe mouth is correct. on its panel, there is a transfer swith of expanding solvent type pipe socket ( straigh port ) and expanding sealloop type pipe socket ( rport ). the choice of expanding pipe type is very convenient, the technologocal adaptability is strong, its main electric control elements are all imported. the syetem charecteristics are steady and reliable

配有與主機配套的接料牽引裝置和相應的程序介面，既能與擠管主機聯線使用，又可以作單機使用；擴管時管材的移動均採用平移方式，動作平穩準確而且不易損傷管材；這種機型採用紅外線加熱方式且為雙加熱爐型，每個加熱爐都配有中心加熱爐芯；成型方式均採用擴管頭定型方式，管口成型尺寸準確；該機型在控制面板上設有擴溶劑型承介面（直口）和擴彈性密封圈型承介面（ r口）的轉換開關，擴管方式選擇十分方便，工藝適應性強；主要的電器控制元件均採用進口元件，系統性能穩定可靠。

The thirty - four species of the sea urchins belong to 7 order, 17 families and 28 genera. the following is the name list, those with an asterisk are the species recorded for the first time in china. order cidaroida family cidaridae * goniocidaris biserialis ( d6derlein ) * stylocidaris bracteata ( a. agassiz ) * stylocidaris ryukyuensis shigei * stereocidaris indica philippinensis mortensen * rhopalocidaris gracilis doderlein order lepidocentroida family echinothuridae * phormosoma bursarium ( a. agassiz ) araeosoma owstoni mortensen asthenosoma ijimai yoshiwara order stirodonta family phymosomatidae glyptocidaris crenularis a. agassiz family arbaciidae * coelopleurus maculata a. agassiz et h. l. clark * coelopleurus undulatus mortensen order aulodonta family diadematidae chaetodiademajaponicum mortensen family pedinidae * caenopedina mirabilis ( d6derlein ) order camarodonta family temnopledridae temnopleurus hardwickii ( gray ) temnopleurus toreumaticus ( leske ) temnopleurus reevesii ( gray ) temnopleurus apodus ( a. agassiz et h. l. clark ) temnotrema sculptum ( a. agassiz ) temnotrema reticulatum mortensen * microcyphus olivaceus ( d6derlein ) * prionechinus forbesianus ( a. agassiz ) family strongylocentrotidae strongylocentrotus nudus ( a. agassiz ) hemicentrotus pulcherrimus ( a. agassiz ) family echinometridae anthocidaris crassispina ( a. agassiz ) order clypeasteroida family clypeasteridae clypeaster virescens doderlein family laganidae * peronellapellucida d5derlein family scutellidae * scaphechinus mirabilis a. agassiz sinaechinocyamus planus liao family fibulariidae fibularia acuta yoshiwara order spatangoida family loveniidae - lovenia triforis koehler echinocardium cordatum ( pennant ) family schizasteridae schizaster lacunosus ( linnaeus ) family brissidae * gymnopataqus magnus ( a. agassiz & h. l. clark ) family spatangidae * spatangus luetkeni a. agassiz among the species reported, the following species call for notes or simple descriptions

本文根據th . mortensen （ 1928 - 1955 ）海膽專著（ amonographoftheechinoidea ）中的主要分類依據，將海膽綱分為8個目： 1 ）頭帕目（ cidaroidea ）有齒器，圍肛部在頂系內，圍口部有步帶板和間步帶板，大棘很大，有外皮層，無球棘； 2 ）鱗棘目（ lepidocentroida ）有齒器，圍肛部在頂系內，圍口部僅有步帶板，大棘不很大，無外皮層，有球棘； 3 ）脊齒目（ stirodonta ）有齒器，圍肛部在頂系內，齒器的齒有脊，橈骨片在齒上方不相接，顎孔開放； 4 ）管齒目（ aulodonta ）齒器的齒無脊，圍肛部在頂系內； 5 ）拱齒目（ camarodonta ）有齒器，圍肛部在頂系內，齒器的齒有脊，橈骨片在齒上方相接，顎孔封閉； 6 ）全雕目（ holectypoida ）有齒器，但不發達或完全被吸收，圍肛部在頂系外，步帶不形成瓣狀和葉鰓； 7 ） ?形目（ clypeasteroida ）齒器發達，圍肛部在頂系外，步帶形成瓣狀，無葉鰓； 8 ）蝟團目（ spatangoida ）無齒器，圍肛部在頂系外，葉鰓發達，步帶形成瓣狀。

Special line slots modularized installation and good interconvertibility make it easier to be replaced because of the furniture at any time. it is said to be the " floating capital asserts ". special line slot and fittings contain line slot, corner junction, enveloping board, line cloverleaf junction. all these may one - way, two - way, three - way or four - way line slot

專用線槽及配件含：線槽角腳封頭板過橋等，均可配套成一通線槽二通線槽三通線槽四通線槽。

The corrosion resistant plate penstock is in the frame of obvious - stem, which mainly consists of lifting device, frame, gate plate, seal, wedge block compressing set, rod and rod joint, rod guide tube, install accessory and etc

不銹鋼閘門為明桿式結構，主要由啟閉裝置、閘框、閘板、密封件、楔塊壓緊裝置、門桿和桿接頭、桿導架、安裝附件等組成。

It ' s difficult to fabricate equipment made of zirconium clad steel material, especially on head forming

摘要鋯鋼復合板設備的製造有一定的難度，特別是其封頭的成形加工。

This article introduces key process of head forming, quality control of the cladding, zirconium surface protection and quality inspection to guarantee the corrossion resistance of the zirconium and mechanic performance of head

介紹了鋯鋼復合板質量控制、封頭壓制工藝、鋯材表面防護、質量檢驗等幾個關鍵工序要求，既保證了鋯復層的耐腐蝕性又使封頭具有一定的綜合力學性能。

This product is collod feathering achro, aticity and viscosity, wghhich can clear the thick oxideatice horizon hot pressed end plate or rollsteel plank which be processed or welded under hot temperature and hot pressure

本產品為無色透明的粘稠狀膠體，針對不銹鋼熱壓封頭或用熱軋板製作工件等，經過高溫高壓處理或焊接時所產生紅、黑、黃等各種類型的較厚氧化層，清除迅速，徹底。

Effect of staggered perforated plate header on flow and heat transfer of plate - fin heat exchanger

錯排孔板封頭對板翅式換熱器流動與換熱的影響

When the punched baffle is proper in length, the small holes are in staggered arrangement and the punched ratio gradually increases from the central axis to the boundary along the baffle length, the performance of flow distribution in the plate - fin heat exchanger is effectively improved by the optimum design of header configuration

從實驗對比分析中得出，當擋板小孔呈錯排分佈、開孔率沿擋板的中軸線向兩側逐漸增加、且總開孔率達到50 %左右的時候，在相同的入口條件下，不均勻系數由原始封頭的1 . 210降至0 . 209 ，最大流速與最小流速之比由23 . 163降至1 . 756 。

Based on pressing practical experience of eha4120 double - faced clad plate elliptical head, the type head external surface clad layer crack reason during pressing process were analyzed and discussed, and the head pressing task was fulfilled successfully through improving the pressing procedure

摘要根據eha4120雙面復合板橢圓封頭的沖壓實際經驗，分析探討了此種封頭在壓制過程中外表面復合層產生裂紋的原因，通過改進壓制工藝，成功地完成了封頭的壓制任務。

Numerical simulation of header construction of plate - fin heat exchanger

板翅式換熱器封頭結構的數值模擬

Particle image velocimetry experimental investigation of header configuration on flow maldistribution in plate - fin heat exchanger

板翅式換熱器封頭內部流場的測量與改進研究

Flow characteristics of flow field in the header of a plate - fin heat exchanger were investigated with particle image velocimetry ( piv )

摘要利用粒子圖像測速儀（ piv ） ，對板翅式換熱器封頭結構改進前、后的流場進行了可視化研究分析。

Present the experimental research carried out on strain and stress by applying the resistance strain surveying technique to the big hole sealed heads in the new fire - tube heating boilers with the laws of strain and stress distribution obtained and allowable working pressure given because there is no applicable standards or specification for calculating the strength of crude oil heating boiler heads perforated by densely distributed big - holes, which, to a certain extent, hampered the further development of crude oil heating boilers in china, and concludes from experimental results that strain and the stress of circumference are fairly large near the edge of big - hole, and the cross ribs enhance strength of sealed head to a certain degree

油田火筒加熱爐密集大開孔封頭的設計計算，因沒有相應的強度計算標準在一定程度上限制了我國油田火筒加熱爐技術的發展.採用電阻應變測量技術，對新型火筒加熱爐大開孔封頭進行了應力應變試驗研究，得到了封頭的應變和應力分佈規律，給出了大開孔封頭允許的工作壓力.試驗結果表明，大孔邊緣圓周處應力應變較大，十字筋板對封頭有一定加強作用

It is found that the fluid flow maldistribution is very serious for conventional header while the improved header configuration with punched baffle can effectively improve the performance

實驗結果表明，原始封頭內部的物流分配存在嚴重的不均勻性，採用添加打孔擋板之後的改進型封頭，流場的不均勻性有了很大的改善。

Effect of different improved header on flow and pressure difference in plate - fin exchangers

封頭對板翅式換熱器流動及阻力特性的影響

Experimental study on outlet temperature distribution in plate - fin heat exchangers under secondary header configuration

二次封頭結構板翅式換熱器出口溫度分佈的實驗研究

The cause of externally applied pipe load to brazed aluminum heat exchanger and the necessity of calculating allowable pipe load are analyzing

摘要分析了板翅式換熱器封頭接管外載荷產生的原因和進行許用接管載荷計算的必要性。