焦直線 的英文怎麼說
中文拼音 [jiāozhíxiàn]
焦直線
英文
focal line-
The grating and reticle, which linewidth errors are less than 10 % nominal linewidth, are fabricated by ldw. for the first time metallic mesh film with area 200mm 200mm fabricated by using ldw photolithography and coating technology
本文完成了直角坐標激光直寫光刻技術研究,開展了離焦激光直寫光刻的工藝研究,製作了光柵和網格分劃板,線寬誤差控制在10 %以內。Coke oven is a complex plant with the characters of large time - delay, strong non - linear, multivariable coupling and changeable parameters. the dynamic process of the coke oven is driven by both continuous variables and discrete events. the mean flue temperature is affected by many reasons and it is difficult to control the temperature to required precision by the normal control methods
焦爐是具有大時滯、強非線性、多變量耦合、變參數的復雜對象,直行溫度受多種因素的影響,焦爐生產過程既受連續時間信號驅動,又受離散事件信號驅動,採用常規的控制方法難以將直行溫度控制到要求的精度范圍內。The position and size of the monochromator, focusing curvature radii and tilting angles of the germanium focusing monochromator under different different take - off angle, size and divergency of the second collimator and intensity loss due to the use of it were determined. the neutron flux at different wavelength, under different reflection and take - off angle of the monochromator and divergency of the first collimator, were given. the simulation on the aperture used for limiting beam size in front of the sample showed that, smaller the size of the aperture and further the distance from the aperture to the sample, greater the loss of the intensity and more serious the spread of the beam along vertical direction at the sample position which makes the practical sampling volume greater than expected
用蒙特卡羅模擬方法對中子應力衍射譜儀的設計方案進行了優化研究,提出了一系列可供參考的數據:確定了單色器的位置、尺寸、垂直聚焦單色器在不同起飛角下的聚焦曲率半徑和傾角;討論了第二準直器的尺寸和發散,以及使用第二準直器造成的強度損失;給出了在不同單色器反射面、起飛角、中子波長和第一準直器發散度的情況下樣品處的中子注量率,以及多種組合情況下譜儀的解析度曲線;對限束方孔的尺寸、距離樣品遠近對強度損失和測量中的影響做了深入研究。The work of the adjustment mechanism is a project which is supported by the state committee of " 863 ". three design mechanisms are proposed, bearing and screw style, movable bearing style mechanism and assembly style mechanism. it is difficult for the precision of the mechanism made of movable bearing to meet the requirements of the design because the bearing must be made individually
空間太陽望遠鏡成像鏡調焦機構的設計是在國家「 863 」高科技課題中展開的,本文有創建性的工作是根據設計要求提出了三種機構設計形式,包括直線軸承式、移動滾珠式和裝配直線軸承式,比較了三種機構各自的優缺點,並根據其中的一種加工製作了實際模型。In terms of efficiency in energy consumption, traveling among planets in straight lines not from desirable. today, space probes customarily make use of hohmann transfer orbits and gravity assists in their interplanetary endeavours. this method, though still quite costly, does help to save fuel to a certain extent
在太陽系的行星中穿梭,直線航行並非理想的路線,現在的探測船均使用赫曼轉移軌道以太陽為焦點連接行星的橢圓軌道,再配合行星推助的技術航行探測船經過行星時偷取行星的能量加速或減速。Self - focusing is one of the fundamental problems in nonlinear optics. it has always been a hot topic since the naissance of nonlinear optics
自聚焦是非線性光學中的一個基本物理問題,自非線性光學誕生以來它一直是一個熱門課題。Multiple beam focusing horn lens antenna is an important part of interferometer. multiple beam lens antenna ’ s designing and measurement are crux because antenna ’ s far - field focusing ability is used to judge interferometer ’ s capability
多波束聚焦透鏡天線是掃頻式干涉儀診斷技術的重要部件,它們的性能直接關繫到干涉儀系統指標的優劣,因此對多波束聚焦透鏡天線的設計和測量也很關鍵。Linear drives in the focal point
直線電機成為焦點We revised frequency spectrum functions by using weighting factor - the distance between direct component and alternating component, and improved the acuity of focus measure curve
提出用交流分量到直流分量的距離作為加權因子對頻譜評價函數進行改進,有效地提高了對焦評價曲線的靈敏度。The paper analyzed the typical method of positioning of optical fiber in astronomic observation. according to the structure ' s characteristics and the working demands of lamost, bring forward the new plan on positioning of optical fiber that the focal plane is divided up many unit zones
通過對天文觀測中光纖定位典型方法的分析,結合工程的特點和工作要求,提出了在焦面上進行分區,並且在單元區域內做直線運動和旋轉運動的雙電機單元光纖定位機構的方法。According to geometrical focusing theory, the gamma knife can focus in spirals 30 beams of co - 60 gamma rays through a collimator to form a high - quality high - dose radiation field. the size of radiation filed can be varied and shaped according to tumor size for 3d radiotherapy. therefore, it can effectively increase radiation dose to tumor tissues and decease radiation dose to normal tissues
根據幾何聚焦原理,將30束鈷60伽瑪射線通過準直后經一個固定的軸線旋轉聚焦,形成品質優良的高劑量區分佈,經治療計劃系統的優化,可使高劑量區的劑量分佈,在三維方向上和腫瘤的形狀一致,從而實現三維適形放射治療。The whole - body gamma knife system is a kind of non - invasive medical instrument by using co - 60 as the gamma ray source. according to geometrically focusing theory, the gamma knife system can precisely focus in spirals 30 beams of gamma rays from different directions to a target through a collimator. by the collimator s direction, the predetermined lesion will be under radiation in heavy dose and subsequently be destroyed completely
體部伽瑪刀是利用能產生伽瑪射線的鈷60作為放射源,根據幾何聚焦原理,將30束伽瑪射線從不同方向和位置通過準直后經一個固定的軸旋轉聚焦到焦點,形成品質優良的劑量區,將腫瘤組織置於該高劑量區中,即可在預定時間內將病變組織摧毀,體表和焦點以外的正常組織僅受到瞬時照射而基本上不受損傷。分享友人