protective ratio 中文意思是什麼

protective ratio 解釋
保護比
  • protective : adj. 1. 保護的，防護的。2. 保護貿易的。adv. -ly ,-ness n.
  • ratio : n. （pl. ratios）1. 比，比率，比值；比例；系數。2. 【經濟學】復本位制中金銀的法定比價。vt. 1. 用比例方式表達；求出…的比值；使…成比例。2. 將（相片）按比例放大或縮小。
  1. Influence of different protective methods on moisture ratio in pig brain with deep hypothermic circulatory arrest

    深低溫停循環時不同腦保護方法對豬大腦組織含水率的影響
  2. The research shows that : 1 ) the ductility of the hsc bending members constructed is much greater than 5 ; 2 ) increasing the vertical links and distribution steel can increase the deflection under ultimate moment ; 3 ) with appropriate compressive bars, vertical links and distribution steel the increase of moment after yield and the decrease of moment under ultimate moment can be ignored, so the ductility of the hsc bending member is much larger ; 3 ) the width / depth ratio of hsc bending member has no obvious effect on the ultimate compressive strain of concrete ; 4 ) the method used here to calculate the deflection is applicable ; 5 ) the location of crack coincides with the location of vertical links and distribution steel ; 6 ) the bending property of the hsc structure under the blast load can meet the demand of protective engineering

    研究表明：本文研究的梁、板構件的延性比遠大於5 ；增加箍筋（鉤筋、分佈筋）含量，可以提高壓區混凝土剝落時的撓度；在適當的受壓筋、箍筋（鉤筋、分佈筋）含量下，可以忽略壓區混凝土剝落瞬間的承載力下降，從而大大提高構件的延性；受彎構件的寬高比對壓區混凝土極限應變的影響不明顯；受彎構件的裂縫間距受箍筋（鉤筋、分佈筋）的布置影響；文中所用的承載力和變形計算方法是可行的。化爆試驗表明，高強混凝土構件的動載抗彎性能能夠滿足防護結構的要求。
  3. Touch on developing large - flow and high - pressure ratio impressor and large - enthalpy drop turbine, reducing harmful emission, solving the major problems of high - temperature blade material, cooling, protective coating and single - grain blade casting, and comfirm some important manufacturing techniques

    涉及了開發大流量高壓比壓氣機、大焓降渦輪，降低有害排放量，解決高溫葉片的材料、冷卻、保護塗層及單晶葉片鑄造等主要問題，並確認了一些關鍵的製造技術。
  4. Fabrication of the box beam is divided into such parts as reinforcement, formwork, concreting, prestressing, moving and storing of beam, pipe grouting under pressure, end sealing of the beam, water - proof layer on the bridge surface system, protective coating etc. the paper makes description of effective box beam construction technology and workmanship which can be adopted in other projects, such technologies as : manufacturing and fixing of reinforcement, steel reinforcement fixing baseplate, web plate and top plate respectively and lifting the steel skeleton into form, requirements of design and manufacturing and way of utilization for dismantling - erection type formwork and hydraulic formwork, optimization of concrete ratio, concrete pouring process of two ends of beam in priority over the middle, in sequence of first baseplate followed by web plate and top plate at last, concrete pouring in inclined section and in horizontal layer, concrete vibration mainly by external vibrator in assistance with internal vibrator, methods and regulation for steam curing of concrete, dual controls over stress and strain to ensure quality of prestressing workmanship, construction method of effective beam moving by heavy - weight special moving facility, some regulations and key notes about construction of grouting under pressure, beam ends sealing, water - proof layer on the bridge surface system, protective coating

    箱梁製造由鋼筋工程、模板工程、混凝土工程、預應力工程、移存梁工程、孔道壓漿工程、梁體封端工程、橋面防水層和保護層工程等施工環節組成。文中介紹的採用胎具製作和綁扎鋼筋，分底腹板和頂板分別綁扎並吊裝鋼筋骨架入模；拆裝式和液壓式兩種模板的設計、製作要求和使用方法；綜合考慮、優化混凝土配合比，混凝土灌注從兩端至中間、先底板、后腹板、再頂板的施工順序和斜向分段、腹板水平分層、附著式振搗為主、插入式搗固為輔的施工工藝，蒸汽養護的方法和規定；應力應變雙控制確保預應力施工質量的施工技術；採用重物移運器有效移梁的施工方法；壓漿、封端、橋面防水層和保護層施工的一些規定和注意事項等都是對箱梁製造行之有效的施工技術和施工方法，並可為以後類似施工作借鑒。
  5. Studies have been made shown that under water stress, not only root weight, root specific surface area, root - shoot ratio, root growing potential, root water potential, root vessel diameter, etc which express the indexes of wheat root morphology and architecture have significantly changed, but also bleeding sap, root respiratory rate, root plasma membrane permeability, plasmalemma peroxide level, root protective enzymes and its isoenzymes etc which express root physiological indexes have changed correspondingly

    過去進行的研究表明，乾旱脅迫條件下，不僅表達小麥根系形態和構型建成指標的根系數量、根系比表面積、根冠比、根生長勢、根水勢、根導管直徑等發生顯著變化，而且表達根系生理指標的傷流液、根呼吸速率、根系質膜透性、膜脂過氧化水平、保護酶及其同工酶等也發生相應改變。
  6. Results show that self - crosslinkable latex at room temperature with high elasticity can be prepared when amount of butyl acrylate is 60 %, and amount of methyl methacrylate is 40 %, and mass ratio of nonionic emulsifier to anionic emulsifer is 3 : 1, and amount of initiator is 0. 6 %, and amount of self - crosslinkable monomer and protective colloid is 2 % and 0. 4 % respectively

    研究結果表明：當丙烯酸丁酯的質量為60 % ，甲基丙烯酸甲酯的質量為40 % ，非離子乳化劑和陰離子乳化劑的質量配比為3 : 1 ，引發劑的質量為0 . 6 % ，自交聯單體的質量為2 % ，保護膠體的質量為0 . 4 %時，可以制備出高彈性自交聯乳液。
  7. The factors affecting the formation of self - healing anti - oxidation protective layer include relative density of the composites, the content of sic and b4c, the ratio value of sic / b4c and oxidation temperature etc., and the effect of sintering process on the enhancement of density of composites and then on the enhancement of anti - oxidation property is especially emphasized

    能否生成自愈合抗氧化保護膜的影響因素有材料的相對密度、 b _ 4c含量、 sic b _ 4c含量比值、氧化溫度等，並強調了燒結過程對提高復合材料密度進而提高抗氧化性能的作用。
  8. The compact nsc series range of circuit breakers, with plastic casing, are suitable for distributed network of ac 5060 hz, voltage rating 500v, electric current rating 15a through 250a, especially adapted to be the main protective switch of machines compact nsc series circuit breaker offer a lot of advantages such as high functionalityprice ratio ; excellent insulation property, safe running operation, exactly and reliable separating function, isolation function ; compact structure and small volume

    Compactnsc系列塑殼式斷路器適用於交流5060hz ，額定工作電壓500v ，額定電流15a至250a的配電網路中特別適合作為機器設備的主保護開關。具有良好的性價比；絕緣性能好，運行操作安全；分段確實可靠，隔離功能；結構緊湊，體積小等諸多優點，是目前同類產品中體積最小的。
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