準直孔徑 的英文怎麼說
中文拼音 [zhǔnzhíkǒngjìng]
準直孔徑
英文
collimating aperture-
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。Application of video streaming media technique in teaching
本標準適用於最大鉆孔直徑小於或等於To ensure the construction quality and safety of large diameter bored piles in deep waters, it is crucial to apply the leading construction technologies with steel liners that are fabricated with appropriate wall thickness and to a high level of quality
摘要採取先進的施工工藝和設備，高精度地沉設具有必要壁厚和高水準加工質量的鋼護筒，對于保證深水大直徑鉆孔灌注樁的施工質量和安全是非常重要的。Applying the standard gaussian beam abcd matrix propagation theory, the parameters selection and the corresponding performances of a laser - guide - star emission system are presented theoretically. in received system, the light route matching problems of the micro - lens array and ccd, collimating lens are considered. the performances of seven - aperture and multi - aperture lens arrays are measured by he - ne laser beam
採用高斯光束標準abcd傳輸矩陣理論設計了發射系統參數，討論了不同參數的微透鏡陣列和準直透鏡、 ccd的光路匹配問題，並用he - ne激光束檢測了七孔徑和多孔徑透鏡陣列的工作性能。The max. depth of drilling is about 50 times of drill tools dia and have to see material for drill specially size
本機種鉆孔深度以鉆頭直徑50倍為標準，特殊規格需視加工材質定Its feature is that the work position of all pre - collimator ' s holes can be selected and put into the use by the computer automatically. 4
其特點是工作的各準直孔徑位置和安全位置可通過計算機控制自動進行切換，使用靈活、方便、安全，以滿足我們多種檢測的需要。分享友人