濃度級次英文怎麼說

濃度級次 的英文翻譯

濃度級次 例句

1. Using cd, cu, zn and cr as experimental toxicants and crucian as experimental creature, we employed the environmental biotechniques ( flame atomic absorption spectrophotometry, the method of improved pyrogallol autoxidation and electron microscopy ) to study the acute toxicity and secure concentrations of heavy metals to crucian ; the accumulation and distribution of mixed heavy metals to fingling crucian ; the activities of superoxide dismutase ( sod ) of gill and liver tissues and the hispathological and ultrastructural change of superfine structure of liver and kidney of crucian after cadmium exposure. through which, we intended to fully and systemically study the toxic influence of heavy metals to fish, and preliminarily discuss the influence of heavy metals pollution to the diversified level of fish such as individual, organ, tissue, cell and molecule. thus we tried to provide scientific evidence to establish preventative management measures, avoid and relieve the harm of heavy metals pollution to aquicolous ecosystem in time
   隨后以這幾種重金屬作為實驗毒物，以鯽魚為實驗動物，應用環境生物技術、火焰原子吸收分光光 度 法、鄰苯三酚自氧化法、透射電鏡等技術研究了重金屬cu 、 zn 、 cd和cr對鯽魚的急性毒性及其安全 濃 度 評價、混合重金屬在鯽魚幼體組織內的積累和分佈、 cd對鯽魚鰓和肝臟中sod活性的影響、 cd對鯽魚肝細胞和腎細胞超微結構的影響等，全面和系統地研究了水環境中重金屬暴露對魚類的毒性影響，初步探討了重金屬污染對魚類的個體? ?器官? ?組織? ?細胞? ?分子等各水平層 次 的影響，為制定漁業生產上預防性的管理措施提供科學依據，及時避免或減輕重金屬污染對水生生態系統造成的損害。
2. Firstly, simulate flow field of rear smoke channel, plot velocity magnitude and ash concentration distribution in section of entry of heat pipe air preheater, compare with data which were measured in guiyang power station, verify simulation to be reasonable and right. secondly, simulate all kinds of factors which affect flow field ' s uniformity such as length, thickness, location of diffluent board, ash concentration, ash diameter, and so on, find the chiefly factors. thirdly, install guide board in curve channel in rear smoke channel, then simulate its " flow field, plot velocity magnitude and ash concentration distribution
   在此基礎上模擬在冬夏兩季不同情況下，不同流速對熱管空氣預熱器壁面溫 度 的影響；然後對影響整個流場分佈的各種因素：包括分流板長 度 、厚 度 、偏離中心流道位置的偏離 度 、飛灰 濃 度 、飛灰粒徑等因素進行數值模擬；最後提出在分流煙道轉彎處加裝導流板，並模擬加裝導流板后的流場分佈，得到下 級 空氣預熱器出口、熱管空氣預熱器進口處的斷面速 度 場分佈、 濃 度 場分佈，以論證加裝導流板能達到流場均勻化的作用。
3. The main work can be summed up as follows : firstly, we studied the thermal - field properties of vcsels, and analyzed the influences of current spreading, material parameters and operating conditions on the temperature distributions. secondly, we began with the electrode voltage and calculated the equipotential s distributions, compared the distributions of voltages and current densities in different depths of vcsels, and then studied the influences of the oxide - confining region with different position or thickness, and the different sizes of the gain - guided aperture and emitting window on the distributions of the injected current density, carrier concentration and temperature in the active region. thirdly, we realized the coupling of electricity, optical and thermal - fields, worked out the threshold voltage, calculated the distributions of the injected current density, carrier concentration and temperature under different offset voltages, and analyzed the impacts of temperature profile and carrier density on the refractive index, fermi levels and optical - field
   具體工作可以概括如下：首先，研究了vcsel的熱場特性，分析了電流擴展，材料參數和工作條件對于溫 度 分佈的影響；其 次 ，從電極電壓入手，計算出激光器中的等勢線分佈，並對不同深 度 處的電壓和電流分佈進行比較，研究了高阻區的不同位置和不同厚 度 、限制層和出射窗口半徑的大小對電流密 度 、載流子 濃 度 和溫 度 分佈的影響；再 次 ，實現了電、光、熱耦合，求出了閾值電壓，計算了不同偏置電壓下的電流密 度 分佈、載流子 濃 度 分佈和熱場分佈，分析了溫 度 和載流子 濃 度 變化對折射率、費米能 級 和光場的影響；最後，給出了考慮n - dbr和雙氧化限制層時激光器中的等勢線分佈，分析了n - dbr和雙氧化限制層對vcsel電流密 度 、載流子 濃 度 、溫 度 和光場分佈的影響。
4. Aba is generated to response to osmotic stress in plant cells. h2o2 is recognized as the second messenger in aba signaling cascade
   而各 濃 度 級 別的、無活性的sb202474分別和aba 、執o :共同處理，不影響氣孔關閉。
5. Surface chemical analysis - secondary - ion mass spectrometry - determination of boron atomic concentration in silicon using uniformly doped materials
   表面化學分析. 次 級 離子質光譜測定法.採用均勻塗料的硅中硼原子 濃 度 測定

濃度級次 的相似字

瀏覽更多漢英字典詞條

前往 漢英字典目錄 瀏覽全部詞條。