ring expansion 中文意思是什麼

ring expansion 解釋
傑米揚諾夫重排作用
  • ring : n 1 圈,環,輪;戒指,指環,耳環,鼻圈,鐲子(等);【運】吊環。2 輪狀物;【植物;植物學】年輪;...
  • expansion : n 1 張開,伸展。2 擴大;擴建;展開;發展。3 廣袤,遼闊。4 擴張物,擴大部分。5 (講題等的)詳述,...
  1. The housing has a higher coefficient of expansion than the ring.

    殼體比圓環具有較高的膨脹系數。
  2. Based on the original data of tm in 1988, 1992 and 1998, then after some processing and analysis, the author have the thematic data of land - use by interpretation. on the basis of them, the author made the analysis of land - use for this area based on the spacial analysis of gis and the method of comparison between result of land - use classification as follows : the method of aggregating analysis, the analysis of urbanization, the analysis of the transformation rate of cultivated land, the analysis of the driving force of land - use change and the sustainable use of land. the conclusions may be demonstrated below : the cultivated land decreases with the patchs fragment ; road spreads radialy surround second - ring road ; the urban land expands quickly toward southwest along the major roads and be concentrative. rural land and industry increse rapidly with dispersing ; 0thers change slowly. the major driving forces of land - use change in this area are the rapid expansion of urban and rapid growth of population, foreign investment and the development of tertiary industry which was based upon the real estate. according the trendency of land - use change, the author consider that we must insist on the way of the sustainable use of land based on protecting the cultivated land

    在此基礎上,應用分類結果比較法,在gis各種空間分析功能(幾何量算、統計分析、疊加分析及緩沖區分析)的支持下,對該區土地利用變化進行了如下分析:土地利用綜合分析、城市化進程分析、耕地轉化率分析、土地利用變化因素分析及土地的可持續利用分析。結果表明:該區土地利用變化主要表現為耕地大量減少,斑塊破碎化;交通用地沿二環線呈放射狀向四周擴展;城鎮用地沿交通干線向西南方向擴張迅速,用地趨于集中;農村居民點和工礦業用地增加,用地趨于分散;其它用地變化較慢。這一用地變化的主導因素是城鎮用地擴展快、人口增長迅速、外資的大量投入及以房地產為主的第三產業的快速發展。
  3. In the joint of lg pex - a pipe, male xocket is pressed to a convex on the inserting part and the fastening ring will contract to fasten up the heating pipe by the fastening of outer nut, and there is also a convex on the ring to offer close coupling by mechanical re - press effect to prevent water from leaking in case of heat expansion

    在lg地熱管中的連接部位不僅閥門管套插入部分的凸起部位被機械作用壓密,而且隨著外部螺母被擰緊,使緊固環收縮,從而帶緊熱炕暖氣管,另外由於存在凸起部位,可通過機械作用進行再次壓密,因此可防止由於熱膨脹而引起漏水。
  4. Channel steel expansion ring

    槽鋼脹圈
  5. These can make up the shortcoming of slrcp ; 2 3. to study the steel stress development of penstock, ring - form slsfsrcp and horse - shoe slsfsrcp during curing period are monitored. the pre - tension stress due to expansion of self - stressing concrete can be used in design ; 4

    對圓形和馬蹄形管道進行了28天養護期內力監測,研究了鋼襯鋼筋鋼纖維自應力混凝土壓力管道的自應力成長過程,明確了鋼筋的預拉應力數值,為此類改性管道設計直接提供依據; 4
  6. Parallel seat gate and seat ring construction can be furnished for high differential pressure services or where high piping loads or thermal expansion may cause sticking of a wedge type gate

    平行閥座閘閥和閥座環結構可以應用在高壓差應用環境中,或者高管道負載,或可能導致楔形閘板閘閥卡住的熱膨脹應用環境中。
  7. Koyo manufactures and sells nine basic kinds of products such as ring joints, expansion joints, screwed joints, swivel joints, manifolds, etc., and our overall standard product lineup runs to approximately 2, 000 items

    產品包括環型接頭,公接頭,母接頭,旋轉接頭,多岐管等品種約2000種標準品,擁有業界最高級的一系列產品。
  8. More than 20 years since its establishment, the group has engaged in the construction of more than 10 highways as chengyu, yufu, yulin, chengya, yuqian, yuhe, changwan, the city ring highway and the reconstruction and expansion of first or second level roads extending hundreds of miles

    集團成立20多年來,先後參加了成渝、渝涪、渝鄰、成雅、渝黔、渝合、長萬、繞城等十多條高速公路的新建和數百公里一、二級公路的改擴建工程及多個城市道路、港口碼頭和堤防、房屋建設施工項目。
  9. Butt welding, electro welding, sleeve coupling, ring seal socket, expansion socket, screw - threaded joint and flange

    對焊,電熔焊,承插連接,螺紋連接和法蘭連接。
  10. Different connections : butt welding, electro welding, ring seal socket, expansion socket, screw - threaded joint, flange

    多種連接方式:對焊,電熔焊,承插連接,螺紋連接,法蘭連接
  11. Sgk - b250 plastic pipe belling machine attribute semiautomatic opportunities for the single - use. such models use infrared heating, molding method adopts expand the headers to finalize the design, orifice size precise shape. the control panel don ' t have the conversion switch to control over the type of solvent for expansion socket ( vertical ) and ring - for flexibility expansion socket ( r ). expanding way is very easy choice and technics adaptability is strong, the main electrical control components are imported, system performance is stable and reliable

    B250塑料硬管擴口機,屬半自動型作單機使用,擴管時管材由人工搬至擴管工位:這種機型採用紅外線加熱方式: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沒有擴溶劑型承插口(直口)和擴彈性密封圈型承插口( 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。
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