open ratio 中文意思是什麼
open ratio
解釋
篩縫面積比-
Also call to pour the type to open the bore box a box for, department on the box the front - panel openning having pouring the bore. because of openning to there is bore, voice in the box to can then radiate the outside. pour the type the box the low frequency extension for ratio closeness type box to be good friends with the amount, but the bass usually and not and so fructify the tightly packed. comparison " infinite baffle " infinite baffle
也稱倒相式開孔箱，系在音箱面板上開有倒相孔槽的一類音箱。由於開有孔，箱內的聲音便可以輻射到外面來。倒相式音箱比密閉式音箱的低頻延伸要好些，但低音往往不那麼結實緊湊。 -
The incident wave height h1 / 3 is in the range from 0. 1m to 0. 25m, and the peak period tp in the range from 1. 0s to 2. 0s. the ratio of s / h1 / 3, which refers to the subface level of wharf deck ( s ) to the incident wave height ( h1 / 3 ), is between - 0. 1 and 0. 7. three different shore connecting types : open - piled, permeable slope with armored 1ayer of dolosse b locks and impermeable slope with armored layer of concrete plate, are set in the experiment for the research on the effects of boundary condition with different shore connecting types on the wave impact
本文的物理模型試驗在大連理工大學海岸和近海工程國家重點實驗室的大波流水槽中進行，試驗中選用的隨機波靶譜為改進的jonswap譜，入射波波高h _ （ 1 / 3 ）范圍為0 . 1m 0 . 25m ，譜峰周期t _ p范圍為1 . 0s 2 . 0s ，碼頭面板的相對凈空（碼頭面板底面距離靜水面的距離s與入射波波高h _ （ 1 / 3 ）的比值）范圍為- 0 . 1 0 . 7 ，其中s / h _ （ 1 / 3 ）為負值時表示碼頭面板底面位於靜水面以下。 -
A nearly constant air-fuel ratio is maintained by the main metering system from part-to-wide-open throttle.
從節氣門部分開啟到全部開啟，主計量系統保證了空燃混合比幾乎恆定。 -
The analysis considered in particular two adjusted indicators as a way of examining the level of open interest with reference to trend growth and cash market development : the de - trended open interest position, and the ratio of open interest to cash market turnover
該文件分析兩項經調整指標，即除勢未平倉合約及未平倉合約與股市成交額比率，藉此探討未平倉合約水平與趨勢增長和股市發展的關系。研究發現該兩項指標在 -
Through the finite element method, this paper compares some variable parameters such as the arch axis, the rise - span ratio and the ratio of spans, which influence the mechanical performances of open spandrel rigid - framed arch bridge. then it summarizes the mechanical properties of this bridge type and the optimal range of these parameters. the plexiglass model test validates the correctness of the finite element method used in this paper. the study will provide reference for the design of this new bridge type
本文採用有限元方法對影響空腹式剛架拱橋受力性能的主要參數：拱軸線型、矢跨比及跨徑比進行了比較分析，總結了這種橋型的結構受力特點以及拱軸線型等參數的合理范圍，為這種新橋型的工程設計提供參考，並通過有機玻璃模型試驗驗證了有限元分析的正確性。 -
Based on the mixture distribution hypothesis ( mdh ) theory, the paper conducted an empirical study into the daily liquidity and volatility of three futures, i. e., bronze, aluminum and natural rubber, and discovered that the trade volume and volatility display a significantly positive correlation, there is a significantly negative correlation between the open interest and volatility, and liquidity ratio and volatility have no significant correlation
摘要根據混合分佈假設理論（ mdh ）等前人研究成果，及對中國期貨市場三個主要期貨交易品種銅、鋁和天然膠期貨的日流動性和日波動性的實證研究，可以發現：交易量與波動率有顯著的正相關關系，持倉量與波動率有顯著的負相關關系；而流動性比率與波動性卻並沒有顯著的關系。 -
Abstract : a two - pole axially - laminated anisotropic ( ala ) rotor reluctance motor, with a high saliency ratio, is de - veloped. based on it, the performance characte istics of the motors are investigated with open - loop operation. it is proposed that an intensive oscillation occurs at low speed, corresponding to the frequency supplied a little greater than the natural one of the system
文摘:研製了一臺高凸極比的兩極ala轉子磁阻同步電動機，實驗研究了電機的開環運行特性，研究結果表明電機開環運行時存在一個比較嚴重的低頻振蕩，這個振蕩發生在電機電源頻率略大於電機的自然頻率后的某一頻段，且會導致電機失去同步 -
In chapter 2, we analyzed the effect of the driving field phase fluctuation on the gain and dispersion and population differences in an open v - type three - level non - inversion lasing system and then discussed the effects of the incoherent pumping rate, the ratio of the atomic injection rates, the atomic exit rate, the rabi frequency of the probe and driving fields and their corresponding detuning on the gain, dispersion and population differences of the system, and got some important conclusions different from those in closed or other open systems
第二章討論了驅動場的相位漲落對開放的v型三能級無反轉激光系統的影響，根據解析解的數值計算結果討論了非相干泵浦速率、粒子注入速率之比、粒子退出速率、探測場和驅動場的rabi頻率和相應失諧對系統增益、色散和粒子數差的影響，得到了一些不同於封閉的v型系統及其他開放的無反轉激光系統的重要結論。 -
In chapter 3, we studied the effect of gaussian transverse profile for the driving and laser fields on lasing without population inversion ( lwi ) in a closed v - type system and an open v - type system. moreover, we discussed also the effect of the unsaturated gain coefficient, the cavity - damping rate, the ratio of the atomic injection rates and atomic exit rate on the corresponding systems. in chapter 4, we mainly discussed the effect of doppler broadening on the gain, dispersion and the frequency up - conversion of the open v - type lwi system and compared the differences and the same between the open system and the corresponding closed system
發現： （ 1 ）在考慮doppler展寬的情況下，通過選取合適的實驗室條件（比如合適的原子環境溫度等）可得到合適doppler展寬值，從而使系統獲得最佳增益； （ 2 ）要想實現系統的頻率上轉換，同時又要獲得足夠強的無反轉激光增益，則系統頻率轉換比不能選取的太大； （ 3 ）對于開放系統，比較小的粒子注入速率比與退出速率對產生無反轉激光是有利碩士學位論文摘要的： （ 4 ）由於dopp1oy展寬的存在，當探測場與驅動場的傳播方向相反時，增益在探測場失諧的某一段區域產生振蕩，且振蕩的振幅、頻率失諧范圍的大小與dopper展寬的取值有關。 -
As for the mobile telecommunication, according the rule, after join the wto one year, the mobile telecommunication market will open beijing, shanghai, guangzhou, unlimited set up joint venture companies, the ratio of foreign capital no more than 25 % ; after join the wto 3 years, open following 14 cities, the ratio of the foreign capital no more than 35 %, after join the wto 5 years, open the whole market, the ratio of foreign capital no more than 49 %
在移動通信方面，根據有關規定，移動通信將在入世1年，開放北京、武漢理工大學碩士學位論文上海、廣州，不受數量限制地建立中外合資企業，外資股權比例不超過25 ；入世后3年，再開放上述14個城市，外資股權比例不超過35 ：入世后5年，全國開放，外資股權比例不超過49 。 -
To comnter the problem of high grinding energy, rapid flow of material, low ratio of material to grinding media, and bad ball coating in common open circuit ferric oxide tube mill, ferric oxide superfine grinding technology markedly increase grinding efficiency and improve grinding status in the tube mill by setting high efficiency sifting equipment, material place regulating technology and subminiature cylpeb
摘要針對普通開流氧化鐵管磨機在氧化鐵生產過程中存在電耗高，流速快，料球比低、嚴重糊磨等問題，通過在磨內設里高效篩分裝蘭，採用料位調節、微型鋼段等技術措施，極大地改善了磨內粉磨工況，提高了粉磨效率。 -
We should formulate energy - saving economic policies for the development of liquor industrial techniques as follows : to attach importance to energy - saving, environmental protection, the utilization of circular economy, bioengineering, solid distillation, storage, blending and flavoring, and the production and the determination of low - alcohol liquor ; to make limitation and elimination in lavish packing, the development of small - scale liquor enterprises, and the production and the sales of unpackaged liquor etc. ; and to strengthen governmental support and social concern on the development of liquor - making industry, to establish a unified, open, orderly and competitive liquor market, to perfect taxation policies and strengthen the taxation management, and to establish technical innovation system and increase production concentration ratio etc
在白酒產業技術發展方向制訂節能技術經濟政策，開發提高節能、環保、循環經濟應用、生物工程、固態蒸餾、貯存、勻兌調味、低度酒的生產和分析檢測等技術；限制和淘汰過度包裝、規模以下白酒企業的發展、散裝白酒的生產和銷售等；加強政府對白酒產業的發展支持和社會的關注，建立全國統一、開放、競爭、有序的白酒市場，完善稅收政策、加強稅收征管，建立技術創新體系，增強白酒行業的創新能力，提高生產的集中度等。 -
The model that this method adopts is not only fully expressing fuzzy attribute of the mine, but also making the resolution ratio high based on the research, this decision - making model is applied to tonglushan mine for starting the open north stope, the result shows : this method is scientific, simple and accurate, and it offers rational basis for the decision making of the mine
在學習、研究大量多屬性決策模型和模糊多屬性決策模型基礎上，對各個模型進行了分析比較，提出適合礦產資源開發的決策模型，並經過深入研究，對模型進行了改進，使得模型解析度進一步提高。在分析研究基礎上，將該決策模型應用於銅綠山銅鐵礦，結果表明：該方法科學、簡便、精確，為北露天礦啟動決策提供了合理的依據。 -
When it comes to the 1990s, because of the strike against the outmoded notion from the reform and open policy, the improvement of women ' s self - sustaining abilities caused by the market economy, the relaxation of divorce restrictions by the new marriage law and the natural trend of the social value ' s diverse development, and so on, the ratio of divorce in our country rises steeply, the children of the divorces increase day by day
到了90年代，由於改革開放對陳舊的傳統觀念的沖擊；市場經濟發展對婦女經濟自立能力的增強；新婚姻法對離婚限制的放寬以及社會價值多元化發展的必然趨勢等主要原因，我國離婚率急劇上升，離異家庭子女日益增多，帶來了一系列嚴重復雜的社會問題。 -
Circular arch is rational for big rise - span ratio, but each has his strong point for small rise - span ratio. ( 3 ) the common used rise - span ratios are 1 / 6 - 1 / 12. by the decrease of rise - span ratio, the internal forces are increasing linearly except of the moment of open spandrel beam
（ 3 ）空腹式剛架拱橋的矢跨比一般為1 6 1 12 ，隨著矢跨比的減小，除了空腹段加勁梁的彎矩值線性減小外，其餘截面的內力值均為線性增大。 -
Plga particles expand around nacl particles create the well - distributed foamy disc and plga / nacl particles ratio effects the porosity and open pore rate, the diameter of nacl particles determined the pore size
支架的釋放性能可以在第7 28天高效維持，並且持續至第49天。 -
However, while the deployment of reform and open policy, due to the emerging of contradictory between system property and the constitutive property, many noib enterprises ’ equipment and the technology get older, the competitive power drops, employment ratio decrease, the leading resource related industry declines, and the economical development is slow
文章以東北90家中國上市公司為樣本，以凈資產收益率、資產報酬率、每股收益三項財務指標作為衡量東北上市公司企業經營績效的指標，採用t檢驗和多元回歸分析的統計方法，檢驗政策實施后企業績效的變化以及影響企業績效的因素。 -
The method of controlling the a / f combines the open and closed loop systems and gradually improves the accuracy of the lpg injection duty ratio by rough regulation, smooth regulation and micro - regulation
本文採用開閉環互相結合，粗、細、微調逐步精確噴氣占空比的控制方式研製了lpg發動機空燃比控制器。 -
However, for vertical roof solar chimney or inclined roof solar chimney with both ends open, either a large optimum gap - to - height ratio or no optimum chimney gap was found in the range of chimney gaps investigated
但是，對于帶有豎直集熱板或傾斜集熱板屋頂式太陽能煙囪（其特點是兩端完全開口） ，在研究范圍內，或者得到很大最佳的寬度與高度的比值，或者沒有找到最佳空氣通道寬度值。 -
In deciding the residential densities in new areas, plot ratio should be considered together with other factors such as demographic forecasts, provision of open space, environment, etc. densities should respond to the changing community aspiration
在訂定新發展區的住宅密度時，應一併考慮地積比率與其他因素，例如人口預測、休憩用地的供應、環境等等。發展密度應配合社區的期望。
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