field shield 中文意思是什麼
field shield
解釋
場屏蔽-
Fist of all, on the basis of the research of agone boffins, this author investigates the interaction mechanism of bolts and rock, and introduces the elastic ? lastic analytical resolution which is consist of the liner structure, the equivalent reinforced wall rock and the original wall rock in the simple loading from the equivalent well - proportioned view ; this solution is very important meaning for the engineering design. on the basis of coulomb friction model, the author introduces the finite element equation of the contact problem in order to provide the academic foundation for the application of msc. marc. finally, combining the engineering practice of the non - linear analysis of shield tunnel through yellow river of the south - north water transfer and using the model of friction, the author researched the evolution law of stress and displacement field in the structure of grouted rock bolts, and analyzed the effect to the stress and deformation of surrounding rock mass due to anchor supports
首先，在前人研究成果的基礎上，對錨桿與圍巖的相互作用機理進行研究，利用全長錨固錨桿的中性點理論，從等效均化的角度來考慮錨桿對圍巖的加固作用，並推導了在簡單荷載作用下，含有襯砌、等效加固后的圍巖、原始圍巖三者的彈塑性解析解，對工程設計有著重要的參考意義；在數值模擬方面，以考慮錨固圍巖滿足規則化庫侖摩擦模型為基礎，利用虛功原理推導了接觸問題的有限元方程的計算格式，為開發運用大型商用有限元軟體msc . marc提供了理論根據，也形成了本文的理論基礎：最後，論文以南水北調東線穿黃隧洞穩定性分析項目為工程實例，利用本文所述的接觸問題的摩擦模型理論，對錨桿支護結構的應力場、位移場的變化規律進行了研究，分析了加錨支護對隧洞圍巖應力、變形的影響。 -
The rest of the furniture of this privileged apartment consisted of old cabinets, filled with chinese porcelain and japanese vases, lucca della robbia faience, and palissy platters ; of old arm - chairs, in which perhaps had sat henry iv or sully, louis xiii or richelieu - for two of these arm - chairs, adorned with a carved shield, on which were engraved the fleur - de - lis of france on an azure field evidently came from the louvre, or, at least, some royal residence. over these dark and sombre chairs were thrown splendid stuffs, dyed beneath persia s sun, or woven by the fingers of the women of calcutta or of chandernagor
在這個倍受寵幸的房間里，還有別的傢具，其中包括法蘭西一世時代的舊柜子，裏面擺滿了中國和日本的花瓶，盧加或羅比亞的陶器，巴立賽的餐碟此外還有古色古香的圈椅，大概是亨利四世或薩立公爵，路易十三或紅衣主教黎賽留曾坐過的，因為在兩三張圈椅上，都雕刻著一個盾牌，盾牌是淡青色的，上面雕有百合花花紋的法國國徽，顯然是盧浮宮的藏物，至少也是皇親國戚府里的東西。 -
A slot was cut in the back plate of the double - foil shield to improve the flow field with air diversion method. the flow field and droplets trajectory near the shield are simulated in wind tunnel by fluent software to analyze the wake flow affecting the spray drift. from simulation, the improved shield spray in reducing drift is better than double - foil shield spray and conventional spray in six types of wind velocity
本文採用導流法在雙圓弧罩蓋上開口，利用fluent模擬分析和比較罩蓋噴霧流場，並模擬該流場下的霧滴運動軌跡來分析霧滴的飄失性，模擬結果表明：結構改進后的罩蓋噴霧流場得到改善，其減少霧滴飄失的效果好於原罩蓋，更優于常規無罩蓋噴霧。 -
The type vacuum arcing chamber is miniaturization product, adopts copper and chrome contactor material, cup shape and longitudinal magnetic field structure, glass insulation case, sealing type shield barrel in the plate
本型號真空滅弧室為小型化產品，採用銅鉻觸頭材料，杯狀縱磁場結構，玻璃絕緣外殼，盤片中間封接式屏蔽筒。 -
So the shield structure was improved to change the flow field, and experiments will be conducted to validate the effect in reducing spray drift
因此，作者提出雙圓弧罩蓋結構的改進方法，並進行減少霧滴飄失的對比試驗研究。 -
Study of field monitoring on interaction between twin slurry shield tunnels in close space
近間距雙線大直徑泥水盾構施工相互影響研究 -
The shape and the structure of the internal thermal shield are complicated. in this paper, a method which can be used to calculate the parameters which can influence the penetration of magnetic field is provided
針對內冷屏幾何形狀和結構形式的復雜性，提出了一種求解反應其對磁場滲透影響的參數求解方法，這種方法也可用於任意形狀的復雜金屬殼體。 -
The in - situ testing includes surface deformations, sub - surface movements, earth pressures, pore water pressures, underground water levels, spt, stresses of pipes and pipe - soil contact stresses. in addition, the total jacking forces, deviations in line and level of the pipe line and earth pressures in the earth pressure balance machines ( epbm ) are also recorded. the results of field - testing are analyzed, and the variety of testing datum include earth pressures, pore water pressures and underground water levels during the course of the shield through it are studied
現場測試內容包括地面變形、深層土體變形、土壓力變化、孔隙水壓力變化、地下水位變化、土體標準貫入試驗、管道內力變化、管土接觸應力變化以及頂管施工現場記錄（包括頂力、土壓力、平面偏差、高程偏差等） 。 -
Adopting conductor shield insulation shield, the cable possessing uniform electric field, safe and reliable
該電纜採用導體屏蔽絕緣屏蔽電場均勻安全可靠。 -
In order to validate the correctness of the simulation, the flow velocity of x vector is measured to compare the flow field between the simulation and the experiment in wind tunnel. the results indicate that the flow field is improved and more stable than the original shield flow field. the tendency between the improved shield and the original shield from simulation is consistent with the tendency from experiments
開口罩蓋流場由於相對穩定，模擬和試驗的測點流速平均相對誤差為15 ，未開口罩蓋流場中由於渦流影響較大，平均相對誤差為22 . 45 ；同時驗證了結構改進前後罩蓋流場的模擬比較結果和試驗比較結果的趨勢是一致的。 -
The electron shield theory analysis shows that the electric field improves the solute solubility
電子屏蔽理論分析表明，電場作用增大了溶質在晶內的固溶能力。 -
Based on thomas - fermi theory, the effect of external electric field on atomic inner boundary potential was studied. the new atomic potential boundary condition with the influence of external electric field was established and the atomic energy and pressure were calculated with new boundary condition. the local effect of solute element under an electric field was analyzed with the electron shield model
在理論上，基於thomas - fermi理論，重點研究了電場作用對原子體系的內勢場邊界的影響，建立了外場作用下的原子勢場外邊界條件，並計算原子能量和壓強；基於電子屏蔽模型，分析了電場作用下溶質行為的局域效應。 -
If the shield current, i2 is equal and opposite to that in the center conductor, the center - conductor field and the shield field will cancel, producing a zero net field
如圖18 ，圖中屏蔽體上的電流與電纜芯線中的電流大小相等、方向相反，於是由這兩個電流感應出來的磁場將相互抵消。 -
Shield the magnetic field with an appropriate material for the frequency and field strength
要根據磁場頻率和強度選擇合適的屏蔽材料。 -
Given that a strong field can affect body chemistry in this way, researchers need to conduct some laboratory experiments to verify the safety of a 20 - tesla shield
由於強烈磁場可能影響身體的化學反應，研究人員必須以實驗測試20特士拉磁場的安全性。 -
Introduced the antijamming in the numerical control system design, from the shield ( including electric field shield, magnetic screen and electromagnetic field shield ) designs mentions, added the absorbing circuit to the perceptual load to suppress the transient state noise to give the specify, might avoid the numerical control system which disturbed creates " softly " the breakdown
摘要介紹數控系統中的抗干擾技術，對屏蔽（包括電場屏蔽，磁場屏蔽和電磁場屏蔽，正確的布線方式）和感性負載加吸收電路來抑制瞬態噪聲做了詳細說明，可避免干擾造成的數控系統的「軟」故障。 -
During plasma disruption, the variation of magnetic field will induce eddy current in the internal thermal shield of ht - 7u tokamak
當等離子體破裂時，其產生的變化磁場會在托卡馬克裝置的內冷屏上產生感應電流。
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