main exposure 中文意思是什麼
main exposure
解釋
主曝光-
The main study in this paper included as follows : the content and distribution of heavy metals in sediments and benthic organisms from the sewage stream in guangzhou city ; the acute toxicity and joint toxicity of mercury and selenium to swordtail fish ( xiphophorus helleri ) ; the damage of mercury to the indexes of antioxidant system in the gills and livers in swordtail ( including the measurement of the activities of total antioxidative capacity [ t ~ aoc ], superoxide dismutase [ sod ], glutathione peroxidase [ gsh - px ] and the concentration of malondiald - ehyde [ mda ] ) and the relief effects of selenium on it, as well as the physiological damage of mercury on the tissues, namely : the antagonistic effect of na + - k + ~ atpase activity on the tissues between selenite and mercury, and the ultrastructural damage under the exposure of mercury
研究內容主要有：廣州市河涌沉積物及底棲生物體內重金屬含量及評價；汞和硒對劍尾魚的急性毒性和聯合毒性及安全濃度的評價；汞對劍尾魚鰓和肝臟中抗氧化系統的毒性，包括對總抗氧化能力、超氧化物歧化酶、谷胱甘肽過氧化物酶活力及丙二醛含量的測定及硒對其保護作用；汞對劍尾魚組織生理毒性即：汞對na ~ + - k ~ + atpase活力的影響及硒的保護作用和汞和對劍尾魚組織超微結構的損傷等。以高氯酸?硝酸消化法和火焰原子吸收分光光度法測定了廣州市河涌沉積物和底棲生物中重金屬含量。 -
The main process of regional ecological risk assessment includes 5 stages : regional analysis, risk receptor selection, risk sources analysis, exposure and hazard analysis, and integrated risk assessment. arming at flood, drought, storm tide, petroleum pollution accident and flow breaking in the lower huanghe river, the probability and distribution of each kind of risk sources are evaluated. the authors bring forward indexes and formulas to measure hazarded degree and risk value of ecosystem. by using remote sensing data, historic record, survey data and by means of geographical information system, regional ecological risk assessment is finished. on the basis of assessment result, the environmental risk management countermeasure of the huanghe river delta is advanced
以黃河三角洲為例進行了區域生態風險評價理論和方法的探討。針對黃河三角洲主要生態風險源洪澇乾旱風暴潮災害油田污染事故以及黃河斷流的概率進行了分級評價並提出度量生態損失與生態風險的指標和公式，分析了風險源的危害作用運用遙感資料歷史記錄調查數據和地理信息系統gis技術，完成了區域生態風險綜合評價在此基礎上提出黃河三角洲的區域生態風險管理對策。 -
Set the main switch selector to m ( manual ). make sure that the mode dial is set to either self - timer., multi exposure, auto bracketing, continuous shooting, or normal mode
把主選擇開關調至m （手動） 。要保證模式盤調到自拍，多重拍攝，包圍式曝光，連續拍攝或普通模式。 -
The main results and conclusions are as follows : 1. sprague - dawley ( sd ) rats were used to establish the animal model of brain injury induced by repeated + gz exposure
主要研究內容和結果如下： 1 、採用sd大鼠重復+ 10gz暴露的方法復制了+ gz致腦損傷動物模型。 -
Results all cases full rectifier or main rectifier, upper eyelid radian was perfect, closeness of eyelid was satisfied, none of exposure keratitis
結果上瞼下垂完全矯正或基本矯正，瞼緣弧度美觀，符合生理，瞼裂閉合良好。 -
In the field of the phytoremediation of copper pollution, submerged macrophytes are focused less than the terrestrial plants. in this study, ceratophyllum demersum l. and cahomba caroliniana a. gray were used as the test plant. the following two aspects were investigated in vivo methods : 1 ) the toxicity effects of cu2 + on the three main antioxidant enzymes ( including cat, pod and sod ) of two submerged macrophytes were detected at different low doses and on the chronic exposure, in order to establish the dose - effect relationship and the time - effect relationship, and thereby acquire the toxicity threshold ; and 2 ) with two submerge macrophytes throng cultured individual or combined on the chronic exposure, it was found on the bcf of copper and the influence of interspecific relationships to the submerge macrophytes resistance or bioconcentration
本論文以兩種大型沉水植物金魚藻（ c . demersuml . ）和水盾草（ c . carolinianaa . ）為受試植物，從它們對水體中cu ~ （ 2 + ）的生物富集作用和動態，以及cu ~ （ 2 + ）對它們體內抗氧化酶的急性毒性效應和亞急性毒性效應兩方面進行了研究： 1 ）通過體內暴露不同劑量的cu ~ （ 2 + ） ，探討cu ~ （ 2 + ）對植物體內三種主要的抗氧化物酶（ sod ， pod ， cat ）的毒理效應，建立劑量?效應關系和時間?效應關系，以揭示沉水植物對cu ~ （ 2 + ）的抗性機制； 2 ）通過對金魚藻，水盾草單獨培養和共同培養的方式，分別研究了兩種沉水植物對cu ~ （ 2 + ）的生物富集系數及其動態以及兩種植物的種間關系對富集銅和植物耐性的影響，綜合評價了兩種植物在銅污染水體的植物修復中的應用前景。 -
Like non - melanoma skin cancer, sun exposure is the main and most preventable risk for malignant melanoma
正如非黑素瘤皮膚癌一樣，陽光照射是惡性黑素瘤的主要成因，也是最容易預防的因素。 -
Set the main switch selector to m ( manual ). make sure that the mode dial is set to either multi exposure, or normal mode
把主選擇開關調至m （手動） 。保證模式盤調至多重曝光或者普通模式。 -
Abstract : aim at the photocurable sterelithography in which micro - components are made according to point - to - point exposure, the paper describes that this method takes long prototyping time ， and it is one of main factors to restrict extension and application
文摘:採用離散點曝光方式來製作微型構造物的光固化快速成型法，其成型時間長，這一問題是制約微型光固化快速成型技術迅速推廣應用的主要因素之一。 -
Among these sources, food consumption is the main channel of human exposure to dioxins, which pollute animal products through contaminated feed, then enter the human body through the consumption of these animal products
但它的主要污染途徑是通過飼料進入畜禽產品，經由動物性食品進入人體，聚集在人體的脂肪中，由於化學成份很穩定，不易排出。 -
X - ray collimator subsystem is the important part of x - ray machine, and its main function is confine the scope of x - ray beam, to reduce the radiation harm to patients ; another function is realizing the multi - scope exposure on one film working with the film motion and shielding system
X光機限束器子系統作為x光機的重要組成部分，其主要用於對x光束的照射范圍進行限定，以減少對患者的輻射，以及配合點片系統實現對x光膠片的多分片功能。 -
Millions of germans want to end their exposure to atomic power, hence the agreement back in june 2000 by the main political parties and thenuclear industry to shorten the life of the country ' s 17 plants and shut themall down by around 2020
自從2000年6月份德國主要政黨與核工業代表達成了縮短全國17個核電廠的壽命以及到2020年全部關閉的協議之後，數以百萬計的德國人想結束暴露于原子能之下的危險。 -
The main living areas are placed on the south side for maximum exposure to sunlight.
主要居住面積都在南面以便盡可能多地利用陽光的照射。 -
The natural radiation is the main source of all radiation exposure to the public
在人類所受到的輻射照射中，天然輻射是主要的。 -
Main content of the thesis are also given in the introduction. the thesis presented three different of the residual stress based on x - ray diffraction - - two - exposure method, sin2, high - resolution reciprocal space mapping, which are applied to investigate the residual stress state of pt / ti bottom electrode stack, polycrystalline pzt ferroelectric thin films and epitaxial laalo3 / batio3 ferroelectric
基於此，提出了本文的選題依據，即研究鐵電薄膜中的殘余應力是基於「鐵電薄膜的重要應用背景和殘余應力對鐵電薄膜性能的可能影響以及目前鐵電薄膜中殘余應力研究的不足」 。 -
In this paper, aimed at the problems existed in theoretical analysis and application of ftm, the discrete fourier transform method is applied to analyze the traditional ftm ( tftm ). and computer simulation is applied. the main propose is to solve the problem, such as frequency shifting, selection of carrier frequency big or small and selection of filter window size. considering the feature of double - exposure holographic interferometry, we propose a modified ftm ( mftm )
針對二次曝光數字全息干涉術中ftm存在的理論缺陷和具體應用到二次曝光全息干涉計量中存在的問題，本文從離散傅立葉變換的角度對傳統的傅立葉變換法（ tftm ）進行了理論分析和計算機模擬計算，並重點致力於解決ftm中的移頻問題、載頻大小的選擇以及濾波窗口大小的選擇等關鍵問題，結合二次曝光全息干涉的特點提出了改進的傅立葉變換法（ mftm ） 。
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