first-order focusing 中文意思是什麼
first-order focusing
解釋
一級聚焦-
We focused on the following aspects ; 1 ) we first assayed the expression of complement receptors and complement - associated molecules on distinct subsets of dendritic cells during their development in order to understand the physical basis of the sensitivity of dendritic cells to complement and its split products ; we next studied the effects of complement activation on the survival of dendritic cells during their development ; and finally examined the effects of the whole complement system, focusing on the ability of one of the split products of complement activation, c5a, and its first subcomponent - c1q, to influence chemotaxis of dendritic cells, as well as allo - t cell stimulatory activity of dc
我們通過免疫磁珠分離了兩種人dc前體，即髓系來源的單核細胞（ monocytes ， mo ）和淋巴系來源的漿細胞樣dc （ plasmaeytoiddendriticeells ， pdc ） ，對這兩個不同dc亞群進行體外誘導培養，使其處于不同的分化發育階段，然後檢測了其表達補體受體一cd35 （ cri ） 、 cd21 （ crz ） 、 cdilb （ cr3 ） 、 cdlle （ cr4 ） ，補體調控蛋白一cd46 、 cd55 、以及部分補體片斷分子受體一c3ar 、 csar 、 clqrp的水平。 -
The condition under which higher - order dispersive effects can be neglected is also discussed with numerical examples. 6. based on the fourier optics, the focusing of ultrashort pulses by a silica lens in both cases of constant beam waist and constant diffraction length is studied considering dispersion of first, second and higher order, respectively
6 ，使用傅立葉積分變換法，在考慮透鏡色差和高階色散效應的較為一般情況下，分別研究了等束寬超短脈沖高斯光束和等衍射長度超短脈沖高斯光束通過硅玻璃透鏡的聚焦特性。 -
Many schools, leaders, teachers, students even parents are focusing on instauration of net classroom and attempt of web - based teaching - how to make net serve for teaching becomes an important task of teaching staff in order to make good use of internet to teach biology, i have designed and explored < nutrition and food hygiene > web - based curriculum, by doing many investigations about web - based teaching, the thesis is divided into six chapters the first chapter gives a brief account of the significance of web - based curriculum about biology reach - based learning
網路教室的建立，網路教學的嘗試，正成為學校、領導、教師、學生甚至家長們關注的熱點問題。如何讓網路為教學服務，正成為教育工作者研究的重大課題。為使網路在生物學教學中充分發揮作用，在大量查閱網路化課堂教學文獻的基礎上，本人設計製作了生物研究性學習? ? 《營養與食品衛生》網路課程，並進行了一定的實踐探索。
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