before and after studies 中文意思是什麼
before and after studies
解釋
事前及事後研究-
The contents of this studies include : 1 ) according to the researches on the correlation between the function and structure of the cmiv from bombyx - moxi before by others, especially by lixinlal in naigin normal university of china, we have designed and sythesized the mutation i of the gene of cmiv that was different from the natural cmiv about 50 % in amino sequence, using the favorable condon of the ecoli. after cheked the result of synthesis by sequence, we have cloned the gene into 3 " of the gene of thioredoxin in the thio - fusion expression vector ( ptxfus ), and the fusion protein of thio - cmiv was highly expressed in soluble form
本研究的內容包括：一、在前人對抗菌肽cmiv研究的基礎上，對n端和c端進行氨基酸保守變換，設計和合成了該基因，充分使用大腸桿菌偏愛的密碼子，並將該基因5端與硫氧還蛋白基因3端融合，通過ptxfus表達載體獲得較高可溶性表達（在15 sds - page膠上可見明顯的表達蛋白帶） 。 -
This was the plan which had appealed to him to afford the best chance of his security. before daybreak he would awake, leave the inn after rigorously paying his bill, and reaching the forest, he would, under presence of making studies in painting, test the hospitality of some peasants, procure himself the dress of a woodcutter and a hatchet, casting off the lion s skin to assume that of the woodman ; then, with his hands covered with dirt, his hair darkened by means of a leaden comb, his complexion embrowned with a preparation for which one of his old comrades had given him the recipe, he intended, by following the wooded districts, to reach the nearest frontier, walking by night and sleeping in the day in the forests and quarries, and only entering inhabited regions to buy a loaf from time to time
他已經有了一個非常安全的計劃：他在天亮以前醒來，很快地付清了賬單，離開旅館，進入森林，然後，借口要畫畫，他花錢受到一個農民的友好接待，給自己弄到一套伐木者的衣服，一把斧頭，脫掉身上的獅子皮，打扮成伐木者的裝束然後，他用泥土塗滿雙手，用一把鉛梳弄臟他的頭發，用他的一個老同行傳授他的方法把他的皮膚染成褐色，白天睡覺，晚上行路，只在必要的時候才到有人的地方去買一塊麵包吃，在森林里穿來穿去，一直到達最近的邊境。 -
Through numders of analysis on the formation mechanism of modified ashalts used in beijing area, also by conducting conventional test, non - conventional test, special test in laboratory and application on highway paveraent, this research studies the effect of different denaturing agents in modified asphalt. lt makes also before - after studies, comparing different denaturing agents, comparing effect on different basic materials after modification and results in the adaptability of different modified asphalt under different climate and traffic conditions, thus provides a good technical support for the application of modified asphalt on the highway asphalt pavement
通過對北京地區使用不同種類改性瀝青形成機理的分析、改性瀝青室內常規、非常規、特殊實驗和改性瀝青混合料在公路路面上的實際應用，研究了各類改性劑對改性瀝青所起到的改性效果。並通過改性前後的實驗結果、不同種類改性劑的對比實驗、不同基質瀝青改性后實驗結果的對比，提出對各種改性瀝青在不同氣候條件、交通條件下的適應性，為改性瀝青在公路瀝青路面中的應用提供了良好的技術支持。 -
Before going back home after 3 years ! studies, jo seizes the chance and unveils her secret and love for leon. leon immediately falls in love with her
三年後，英臺要離校回家，此時她向山伯表明自己的身份與情感，兩人私訂終身，卻被紈子弟馬文才看在眼裡。 -
Ultrafine a - ahoa powder with average crystalline size of 27nm and spherical secondary partical shape of 40nm has been prepared by the method of adding dispersant before reaction. after discussing the agglomeration mechanism, the paper studies the way to eliminate the hard agglomeration. it thinks that main reasons to lead to agglomeration are larger specific surface area and high reactivity of nanopowder
認為導致團聚的主要原因是：納米粉體顆粒的表面有許多斷鍵，相互之間或與其它物質之間容易產生毛細管力、氫鍵、化學鍵等多種作用力，在採取措施消除團聚的過程中必須全方位考慮，實現全程式控制制。 -
The purpose of this paper is to find out the characteristics of corporate restructuring and reorganizations under the background of strengthened supervision and improved accounting standards in 2001. using financial data on chinese public firms that had performed restructurings in 2001, this paper studies the impact of restructuring activities on firms " performance. it finds that performance of sample companies are better than the market average both before and after restructuring, but financial ratios does not improve obviously, what ' s more, the roe ratios even drop generally, which are very different from the characteristics during the past few years
本文採用以財務數據為基礎進行評價的方法，對2001年上市公司資產重組進行研究發現，從資產重組的方式來看，收購兼并所佔比重最高，業績較好的公司偏向于選擇這種重組方式，而資產置換、股權轉讓仍為績差公司所青睞；從重組前後財務指標的變化來看，重組公司表現優於市場平均水平，但與往年重組公司當年業績即得到明顯提升不同， 2001年重組公司財務指標並未得到顯著提高，凈資產收益率更是全面下降，統計對比不支持上市公司利用資產重組調節公司績效的觀點。 -
This paper studies rock conductive mechanism through litho - electric experiment and waterflood litho - electric experiment, describes the lithology, petrophysical property and electric property of reservoir before and after watered - out, and proposes to identify watered - out zone by relative resistivity
摘要通過對巖石導電機理的研究，即巖電參數實驗和水驅巖電實驗，描述了水淹前後儲層的巖性、物性及電性變化特徵，提出電阻率相對值法識別水淹層方法。 -
This paper studies the influence of formula and temperature of inorganic gel system on gelling time, investigates the easy - to - inject property of the system before gelling and the plugging ability under high - temperature high - salt condition after gelling
摘要研究了無機凝膠體系的最佳配比以及溫度等條件對成膠時間的影響，考察了體系成膠前的易注入性，成膠后在高溫高鹽條件下的堵塞能力。 -
The contracts which had been formed can be taken into effect only when it satisfies the conditions in laws. this dissertation studies the historic transformation of the conditions of the effect before and after the enforcement of the new contract law
已經成立的合同，只有具備法律規定的條件才能發生法律效力，本文以發展的眼光探討了新合同法出臺前後合同有效條件的歷史變遷。
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