激光照射前的 的英文怎麼說
中文拼音 [jīguāngzhàoshèqiánde]
激光照射前的
英文
prelaser- 激 : Ⅰ動詞1 (水因受到阻礙或震蕩而向上涌) swash; surge; dash 2 (冷水突然刺激身體使得病) fall ill fr...
- 光 : Ⅰ名詞1 (照耀在物體上、使人能看見物體的一種物質) light; ray 2 (景物) scenery 3 (光彩; 榮譽) ...
- 照 : Ⅰ動詞1 (照射) illuminate; light up; shine 2 (反映) reflect; mirror 3 (拍攝) take a picture ...
- 射 : Ⅰ動詞1 (用推力或彈力送出) shoot; fire 2 (液體受到壓力迅速擠出) discharge in a jet 3 (放出) ...
- 前 : Ⅰ名詞1 (在正面的) front 2 (次序在先的) first; top 3 (過去的; 較早的) ago; before; preceding...
- 的 : 4次方是 The fourth power of 2 is direction
- 激光 : [物理學] laser 激光靶 laser target; 激光報警器 laser avoidance device; 激光玻璃纖維 laser fibre; ...
- 照射 : shining; raying; shine; illuminate; light up; radiate; irradiation; radiation; bombardment; illum...
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Sequential analysis of the influence of low - energy he - ne laser on hemorheology characteristics of stored blood
氦氖激光照射大鼠心前區對血液流變學指標的影響Approximately thirteen seconds before impact, the copperhead ' s laser light sensor becomes active, and it uses fins to guide itself to the laser light source
在炮彈著地前大約13秒時銅斑蛇的激光傳感器啟動,利用直尾翅制導攻擊激光照射目標。By shining laser light on a part of the hologram, an unfolding occurs in which the form and structure of the whole become apparent
當激光照射部分全息圖,可以明前的展現發生在整體中的形式和結構。Ion objective : to investigate effect of nd : yag laser irradiating root canals on periapical tissue. methods : three minipigs were used in this study, deciduous premolars were opened, pulps were extracted, root canals were enlarged, then irradiated with nd : yag laser 30s and filled conventionally. the changes of periapical tissue were observed after 1, 3, 7 and 15 days. results : after one day, periapical tissue showed enlargement and engorgement of blood vessel and a few of leukocyte, the changes were more serious than in control. after 3 and 7 days, there were minor reactions in periapical tissue and same as the control group. after 15 days, periapical membrance in most specimens was normal. slight inflammatory reaction was found in the test group as same as in control group. conclusion : there was little damage to periapical tissue with the laser irradiation
目的:觀察激光在根管內照射后對根尖周組織的作用.方法:選3隻小型豬,全麻下將乳前磨牙開髓、抽髓,根管擴大后,激光照射30秒,做常規根管充填.對照組為常規根管充填. 1天、 3天、 7天和15天後觀察根尖周組織的變化.結果:激光照射后1天,根周膜血管充血、輕度炎癥,對照組只有根尖周膜充血.激光組組織反應比對照組稍重.激光照射后3天和7天,少數病例根周組織有輕度的刺激與對照組的病理表現相近.激光照射后15天部分標本根周膜正常,部分標本有輕度炎癥反應,與對照組結果基本相似.結論:本激光照射條件對根尖周組織沒有明顯損傷作用,可供臨床應用時參考Point diffraction interferometer - a physical idea, is invented by smartt and strong in 1972, advanced by smartt and steel, and used to test astronomical telescope, it has simple structure and has not special demand to source. recently. with the development of fiber ' s manufacture and coupling technology. the simple modern fiber ' s center is smaller than before, this make it possible to progress fiber point diffraction interferometer ( pdi ), in addition to test convergent wavefront, it can test the reflective concave. the excellence of pdi is that it does not need standard mirror. in intereference testing, the standard mirror is the main reason which limit the improvement of precision, pdi can avoid difficulty to provide the wide future for high precision testing. pdi, which produce the standard sphere wavefront, is an instrument which realize the phase shifting with piezoelectric transducer ( pzt ), and collect the interferogram with ccd, in this paper, a adjusting methord is described, then data processing is obtained
點衍射干涉儀這一物理思想,早在1972年smartt和strong就已發明,由smartt和steel做了進一步發展,並成功的用於檢測天文望遠鏡,它結構簡單,對光源沒有特殊要求,近年來,由於光纖製造工藝以及耦合技術的發展,單模光纖纖芯不斷縮小,為光纖點衍射干涉儀得以發展提供了前提條件,該干涉儀由激光照明,除了檢測會聚波前外,還可以用來檢測反射凹球面,進而應用到單個面形的檢測;另外,光纖點衍射干涉儀最大的優點是不需要標準鏡,在干涉檢測中,標準鏡是檢測精度受限的很大原因,光纖點衍射干涉儀能繞開這一難度,為進行高精度的光學檢測提供了廣闊的前景。Aviation week reported more than 20 years ago that the u. s. has used lasers to illuminate chinese and then soviet satellites to obtain engineering intelligence
航空周刊在20多年前就報道過美國曾用激光照射過中國和蘇聯的衛星,以便獲取技術情報。分享友人