ratio n. (pl. ratios) 1.比,比率,比值;比例;系數(shù)。 2.【經(jīng)濟學】復本位制中金銀的法定比價。 the ratio 3:2 (讀作 the ratio of three to two )3對2之比。 arithmetical ratio 公差,算術比。 direct ratio 正比。 inverse [reciprocal] ratio反比。 current ratio 電流比,電流變換系數(shù)。 nutritive ratio 營養(yǎng)率。 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。
Effects of injection ratio on pressure drop in horizontal wells 注入比對水平井筒壓降影響規(guī)律的研究
Results indicated that the friction reduction of ship flat bottom is proportional to the air injection ratio and adversely proportional to the distance from the injection 計算結果表明,平底船的減阻率與噴氣率成正比,而與離噴氣口距離成反比。
Applying dh can enhance the injection ratio , strengthen the confinement to the carrier and enhanced the efficiency of the recombination . this make the brightness greatly enhance Dh結構不僅提高了載流子注入比并且加強了載流子限制作用,提高了輻射復合的效率,使得hb - led的亮度大幅度提高。
At the same time , using the total energy efficiency and the equivalent exergy efficiency as the evaluation criterion , this thesis also discusses the influence of the water injection ratio and pressure ratio on the performance of this cycle 同時以總能利用率和當量(火用)效率為評價準則,討論了注水率和壓比對循環(huán)性能的影響。
This thesis gives a fundamental quantitative analysis of the cycle of recuperative gas turbine cogeneration with water injection and mainly discusses the influence of water injection ratio and pressure ratio on the specific power and the amount of heating 本論文對功熱并供回熱注水燃氣輪機熱力循環(huán)進行了基本定量分析。主要分析了注水率和壓比對比功和供熱量的影響。
Abstract : very excellent results have been achieved in injection of coaluniformlly by means of implementing three technical measures under the current conditions , thus laying a very solid foundation for raising the coal injection ratio , stabilizing the gas flow of bf , and gaining better economical efficiencies 文摘:介紹了在現(xiàn)有的條件下,通過三種措施的實施,取得了煤粉的均勻噴吹,為進一步提高煤比,穩(wěn)定高爐煤氣流,并獲得更好的經(jīng)濟效益打下了基礎。
Result of numerical simulation shows that the grads of continuous phase " s velocities decreases with the presence of microbubble of which the diameter is 100 / / w , the profiles of air volume fraction in the boundary layers is similar to triangle or echelon , affected by interaction among the particle , there is a saturated air fraction , within the scope of saturated air fraction , increasing the air injection ratio can accrete the friction reduction ratio , under the condition of same air injection ratio , the free - steam velocity is larger , the effect of friction reduction is worse 計算結果表明,直徑為100 m的微氣泡能減小近壁面連續(xù)相的速度梯度;微氣泡在邊界層中的濃度分布近似為三角形或梯形分布;受粒子間相互作用的影響,存在一飽和濃度;減阻率隨噴氣量的增大而增大,直至飽和噴氣量,此后,增大噴氣量,壁面摩擦阻力變化不大;相同噴氣量下,來流速度越大,減阻率越低。
Appling p - n graded heterojunction instead of abrupt one is studied deeply in theory , and the conclusion is that it will enhance the current injection ratio , decrease the built - in voltage , improve the quality of the crystal and it will not affect the confinement to the hole 在理論上提出在hb - led器件的dh結構中使用p - n結的漸變異質結替代現(xiàn)行的p - n突變異質結。分析采用異質結漸變方式將增加hb - led的電流注入比,減小內建電勢,改善晶體質量,并且不影響p - n結對空穴的限制。