lead tube 中文意思是什麼

lead tube 解釋
鉛管
  • lead : n 1 鉛,鉛製品。2 【航海】測鉛,測深錘,水砣。3 〈pl 〉(鋪屋頂的)鉛皮;鉛皮屋頂;【印刷】插鉛,...
  • tube : n 1 管,筒;顏料管。2 管狀地下隧道;〈口語〉(倫敦的)地下鐵道。3 【炮】炮身;【汽鍋】鍋管;【解...
  1. Lead and lead - antimony alloy tube

    鉛及鉛銻合金管
  2. At the initial stage of planar technique, b was employed as ideal diffusion impurity in base - region of npn si planar devices because of the match of its solid - solubility and diffusion coefficient in si with those of p in emission - region, and the good shield effect of sio2 film to b. but because of the relatively large solubility ( 5 1020 / cm3 at 1000 ) and the small diffusion coefficient, the linear slowly - changed distribution of acceptor b in pn junction can not be formed, which could not cater to the requirement of high - reversal - voltage devics. thereafter b - a1 paste - layer diffusion technology and close - tube ga - diffusion technology had been developed, while the former can lead to relatively large the base - region deviation and abruptly varied region in si, which caused severe decentralization of current amplification parameter, bad thermal stability and high tr ; the latter needed the relatively difficult pack technique, with poor repeatability, high rejection ratio, and poor diffusion quality and productio n efficiency

    在平面工藝初期,由於b在硅中的固溶度、擴散系數與n型發射區的磷相匹配, sio _ 2對其又有良好的掩蔽作用,早被選為npn硅平面器件的理想基區擴散源,但b在硅中的固溶度大( 1000時達到5 10 ~ ( 20 ) ,擴散系數小, b在硅中的雜質分佈不易形成pn結中雜質的線性緩變分佈,導致器件不能滿足高反壓的要求,隨之又出現了硼鋁塗層擴散工藝和閉管擴鎵工藝,前者會引起較大的基區偏差,雜質在硅內存在突變區域,導致放大系數分散嚴重,下降時間t _ f值較高,熱穩定性差;後者需要難度較大的真空封管技術,工藝重復性差,報廢率高,在擴散質量、生產效率諸方面均不能令人滿意。
  3. So the foundation is set for its practical use. 4 the acting - straight - sorting and dropping plug set is designed, which can solve the sorting plugs unclearly because of the difference between individual plug seedlings, and can raise the punctuality of sorting plug seedlings and the veracity of plug seedling dropping into the lead - plug - seedling - tube, in addition, the working frequency of acting - straight cylinder is calculated by analysis to the movement and strength of the key parts in this system which can accelerate the transplanting rate to 3 plants per second, further more, a lot of operated experiments indicate that the working reliability of this set can be raised under the condition of the proper seedling transplanting speed

    4採用直動? ?雙擋銷式分缽落苗系統,不僅解決了因為缽苗個體差異帶來的分缽不清的問題,而且提高了缽苗分缽的準時性和缽苗落入導苗管的準確性;同時,通過對該系統工作過程的主要工作參數的運動和受力情況分析,確定了該系統各直動汽缸的工作頻率,使分缽落苗速度達到3株/秒以上,進一步通過大量試驗對其進行驗證,證明了該系統在滿足栽植速度要求的前提下,可以大大提高了系統的工作可靠性。
  4. Heater adopts high quality stainless steel, alloy heating wire, electrical melting mgo powder etc. to make the heating elements after passing advanced technology such as coiling wire, shrinking tube, removing humidity and sealing etc. the connection between flange and heating tube adopts hydrogen arc welding and vacuum lead welding to guarantee the heater without leakage under high voltage

    加熱器採用優質不銹鋼管合金加熱絲電熔氧化鎂粉等材料,經繞絲縮管排潮封口等先進的生產工藝製造而成的發熱元件法蘭與電熱管的聯接採用氬弧焊及真空釬焊,保證了加熱器在高壓下的不滲漏。
  5. 14 npt lead pressure transition joint and back welding lead - pressure tube code c12

    A2 . - 14npt引壓過渡接頭及後部焊接引壓管代碼「 c12 」
  6. A2. 14 npt lead pressure transition joint and back welding lead - pressure tube code c12

    A2 . - 14npt引壓過渡接頭及後部焊接引壓管代碼「 c12 」
  7. Joint of t shape : positive tread of m201. 5 and back welded lead - pressure tube stainless steel

    「丁」字形接頭: m20x1 . 5陽螺紋及後部焊接引壓管不銹鋼
  8. Zinc sacrificial anode is demonstrated to provide the lead tube an excellent corrosion protection from the strongly aggressive acid and solder flux

    研究結果顯示,鋅犧牲陽極可陰極保護鉛管免於強酸或鉛工臘的侵蝕。
  9. A e - waste product is highly suggested to be recycled by professional recycling company with certification. e - waste has various toxic components, such as brominated flame retardants bfrs in circuit board, lead in tube, mercury in sensor, etc. if handled or disposed improperly, they will create huge harm to the human body and to safety of the environment

    A :電子廢棄物一定要交給有資質處理的專業環保回收處理公司,電子廢棄物中含有多種有害物質,如電路板含有溴化阻燃劑,顯像管含鉛,傳感器中含汞等,如果利用或處置不當,會對人體健康和環境安全造成極大的危害。
  10. However, failure to secure free airway following airway obstruction due to kinking of endotracheal tube or other tube problems may lead to lethality instead of lifesaving

    然而,若因管子彎折或其他問題導致呼吸道阻塞而無法及時排除和處理常常造成病患死亡。
  11. 1 2 - 14npt lead pressure transition joint and back welded lead pressure tube stainless steel

    1 2 - 14npt引壓過渡頭及後部焊接引壓管不銹鋼
  12. As for the limit bearing capacity formula of the concrete filled steel tube long column subjected to axial compress, we lead to the tangent modulus and the conception of metal material. the high strength core concrete is divided into two kinds of situations : single axial loading conditions and triaxial loading conditions

    在推導鋼管混凝土軸心受壓長柱臨界承載力公式時,論文利用材料的切線模量,分別推導了鋼材和混凝土的切線模量公式。對于混凝土的切線模量,本文分成單向受壓和三向受壓兩種情況考慮,並分別得出切線模量公式。
  13. Determination of lead in blood by tantalum - foil - lined - tube graphite furnace aas

    襯鉭管石墨爐原子吸收法測定全血中鉛
  14. Lead tube is usually used as the metal closure of underground cable

    摘要鉛管為最常使用之地下電纜接頭材料。
  15. In this study, the performance of organic coatings as well as the sacrificial anode for corrosion protection to lead tube are evaluated by the electrochemical impedance spectroscopy technique in an accelerated laboratory test

    本研究乃針對犧牲陽極的陰極保護及有機塗層等防蝕措施,在模擬加速腐蝕環境中,應用電化學交流阻抗及測試技術,評估其用於鉛管的可行性及耐蝕性改善效益。
  16. 3. spherical joint 13 place may be welded with lead pressure tube

    3 .球形接頭13處可與引壓管焊接
  17. 6. spherical joint 13 place may be welded with lead pressure tube

    6 .球形接頭13處可與引壓管焊接
分享友人