限制粒徑 的英文怎麼說

中文拼音 [xiànzhìlìjìng]
限制粒徑 英文
constrained diameter
  • 限 : Ⅰ名詞（指定的范圍; 限度） limit; bounds Ⅱ動詞（指定范圍, 不許超過） set a limit; limit; restrict
  • 制 : Ⅰ動詞1 （製造） make; manufacture 2 （擬訂; 規定） draw up; establish 3 （用強力約束; 限定; 管束...
  • 粒 : Ⅰ名 （小圓珠形或小碎塊形物） small particles; grain; granule; pellet Ⅱ量詞（用於粒狀物）
  • 徑 : Ⅰ名詞1 （狹窄的道路; 小路） footpath; path; track 2 （達到目的的方法） way; means 3 （直徑的簡稱...
  • 限制 : place [impose] restrictions on [to]; astrict; restrict; limit; confine; shut down on [upon]: 限制...
  1. The control of beam halo - chaos becomes a critical problem in the development of high intensity accelerator. efforts to remove the halo by collimation have been largely unsuccessful since the halos almost always regenerate. the mechanisms of halos are complex, such as nonlinear resonances and chaotic behavior etc. considering this, professor fang jin - qing who works in china institute of atomic energy pointed out that the theory of chaos control can be used to control beam halos. he presented the method to control halos by using nonlinear functions, which means nonlinear function g is added to the right of ion radial self - edlctric force equation and some nonlinear function are selected to control beam halos in simulations. in paper [ 69 ], controllerg = - 0. 15sin ( rmax - am ) 2 was used and the halo intensity was decreased to 0. 1078, the halos are removed partly

    束暈?混沌的控制是新一代強流加速器研製的關鍵問題，隨著強流離子束應用前景的日趨廣闊而日益成為研究的熱點。傳統機械限束器因無法解決束暈的再生而收效甚微，因為束暈的形成有著其內在動力學機制?非線性共振以及混沌等。基於此，中國原子能科學院研究員方錦清將混沌控制的理論和方法開創性的運用於束暈?混沌的控制上，提出了控制束暈?混沌的非線性控制策略，即在粒子徑向所受束自生場力方程的右邊加上非線性控制函數g ：並選取一些非線性函數如等進行了控制的模擬研究，將束暈強度控制在0 . 1078左右，取得了初步的控制效果。
  2. Because the best grade limits does not vary with material property, firstly, we can confine material grade to the best grade limits when doing subbase mixture design, secondly, after systematic temperature contraction test, aridity contraction test and compressive strength correction test, we can determine the best cement percentage which has the best crack resistance property

    因為最佳級配范圍是與粒料的粒徑大小有關的，所以在基層材料配合比設計時可首先將材料級配限制在最佳級配范圍以內，然後通過系統的溫縮、干縮性能試驗以及抗壓強度校核試驗，最終確定抗裂性較好的合理水泥劑量。
  3. When both genes were co - expressed in e. coli, the activity of ppsa varied from 2. 1 - 9. 1 fold comparing to control, but the activity of tkta was relatively stable ( 3. 9 - 4. 5 fold ). whatever the two genes were expressed respectively or cooperatively, both could promote the production of dahp, the first intermediate of the common aromatic pathway, but co - expression was more effective on forming dahp and screened ppt - and ptp - as more effective. the results demonstrate that co - expression of ppsa and tkta can improve the production of dahp, and what ' s more, when multigenes co - expressed, the recombinant which has coordinated enzymes activity is optimum

    莽草酸途徑的最優化和整體調控基因csra的敲除正是上述改變的分子基礎，同時也為三種芳香族氨基酸的基因工程菌的構建打下了基礎; 7 .在國內外首次實現了共同途徑限制性底物關鍵酶ppsa刁無『及arog與分支途徑關鍵酶基因phea的串聯高效表達，所構建的重組質粒ptga ，其ppsa 、 tkta 、 arog 、 cm和pd的酶活分別比對照提高了3 、 2 、 2 ， 5 、 4 、 2 . 3倍，且其酶活比較協調一致; 8 .將ptga導入到篩選的基因敲除和基因替換菌株大腸桿菌31884 c甲b中，搖瓶發酵證實比以往所構建的基因工程菌株具有較高的phe產量和糖轉化率率，分別為0 . 448 %和22 . 4 % 。
  4. Since the pebble structure is of big pellet easy to be permeated ant it is difficult to smash and drill, the appliance with big diameter and deep cast - in - place pile has been greatly restricted

    卵石地基具有顆粒大、透水性強、進尺和破碎困難、容易垮孔等困難，限制了大直徑深孔鉆孔灌注樁在其中的應用。
  5. Sem, transmission electron microscopy ( tem ), x - ray energy - dispersion analysis ( edax ), xrd, electron diffraction ( ed ) and high - resolution electron microscopy ( hrem ) were used to investigate the morphology, atomic composition and crystal structure of the nanowires. the hexagonal cdse nanowires with single crystal structure have been obtained in dmso under 140. ( 3 ) semiconductor te and cdte nanowires embedded in aao templates were fabricated for the first time by dc < wp = 7 > electrodeposition in ethylene glycol

    Sem 、 tem 、 edax 、 xrd 、 ed 、 hrem分析的結果表明，所得cdse納米線為六方晶型，晶體的（ 001 ）晶面沿平行於基底的方向擇優生長，且隨沉積溫度的降低，這種擇優生長的趨勢越來越強；納米線晶體在生長時，由於受aao模板孔徑的限制，形成c軸方向拉長的晶粒，其長徑比達5 1以上；晶體的大小和完善程度隨沉積溫度的降低而增大， 185沉積得到多晶六方cdse納米線，而140沉積時可得到六方cdse單晶納米線。
  6. However, the si3n4 is non - crystalline when power is 100w or 150w. the agglomeration and the distribution were important parameter of nanopowder, which were analyzed by the laser light scattering particle - size test instrument. but the result appeared great error because of this instrument itself and high requirement to sample

    粒徑分佈和團聚是納米粉體材料重要的表徵手段，採用激光散射技術對納米氮化硅粉末粒徑的分佈和團聚進行分析，激光散射技術由於本身的限制和對樣品的高要求，測量納米材料的分佈有較大的誤差。
  7. A single - ion microbeam facility is a set of system that can limit the diameter of the ion beam to the micron level and can deliver defined numbers of ions into an defined area of a cell

    單粒子束裝置（ single - ionmicrobeamfacility ）是一種可以將粒子束的束徑限制在微米量級的范圍內，並將預定個數的粒子注入到細胞中的某一指定位置的輻射裝置。
  8. A single - ion microbeam facility is a set of radiation system that can limit the diameter of the ion beam to the micron level and can deliver predefined numbers of ions into a predefined area of a cell

    單粒子束裝置（ single - ionmicrobeamfacility ）是一種可以將粒子束的束徑限制在微米量級的范圍內，並將預定個數的粒子注入到細胞中的某一指定位置的輻射裝置。
  9. The light route used by measuring instrument determined its volume, according to the place between sampling area and lens, with the application background limits, the miniature atomized particles size measuring instrument takes scheme that the sampling area locate in front of the lens and the optic - electronic sensor at the back focal plane of the lens. the miniature atomized particle size measuring instrument employs

    測量儀器採用的光路直接影響儀器的結構尺寸，接收透鏡和采樣區位置的關系具有不同的配置方案，由於霧粒粒徑測量儀應用背景的限制，所採用的光路配置方案是被測顆粒位於透鏡前方，光能接收器件位於透鏡后焦面上。
  10. In designing the deep bed, the empirical formula l / de = 800 is used as the basis. however, it has been proved that the formula cannot precisely describe the functional relationship and the correlation degree between the nitration behavior of the deep bed filtration process, the depth of the deep bed and the diameter of the sand granule, and it is restricted greatly in the practical application of finding a suitable depth of the deep bed

    目前，濾池的設計通常採用經驗公式i d _ e = 800作為設計濾池厚度的依據，但實踐證明此經驗公式還不能準確地反應濾池過濾特性與濾池深度l 、濾料粒徑d的相關關系及相關程度，在實際應用中受到很大限制。
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