concentrations 中文意思是什麼

concentrations 解釋
濃聚物
  1. Standard practice for determination of adsorptive capacity of activated carbon by a micro - isotherm technique for adsorbates at ppb concentrations

    用ppb濃縮時吸附物的微縮等溫線技術測定活性炭吸附能力的標準實施規程
  2. If such astonishing concentrations of bacteria were typical of vent outflow, then food within the vent would dwarf any contribution from advection

    如果如此驚人的細菌含量在噴口流出物中具有代表性，則水平對流的影響就變得微不足道了。
  3. Survey of concentrations of dust mite allergen and lipopolysaccharide in working place and home

    工作場所及居室內塵蟎變應原及脂多糖調查
  4. Ambient concentrations varied considerably by season.

    環境濃度隨季節而大幅度變化。
  5. Depletion of soil nitrogen frequently leads to reduced concentrations of soluble amino and amides.

    土壤氮素的減少常常導致可溶性氨基酸和酰胺濃度的降低。
  6. 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。
  7. In this study, the stem segments of new shoot with axillary buds of well - growth tetraploid black locust trees were used as explants. the effects of different basic mediums, different hormone kinds and their concentrations ratios, different sucrose concentrations on calli induction, buds differentiation and rooting in the process of establishment of high frequency regeneration system of tetraploid black locust were studied. on the base of high frequency regeneration system, the effects of various factors on transformation efficiency of badh mediated by agrobacterium tumefaciens were discussed in the light of gus histochemical assays

    本實驗首先以生長良好的四倍體刺槐優株上當年生新梢的帶腋芽莖段為外植體，研究了在四倍體刺槐高頻再生體系的建立過程中不同基本培養基、不同激素濃度及其配比、不同蔗糖濃度對愈傷組織的誘導、芽的分化及生根的影響；然後在得到高頻再生體系的基礎上，通過農桿菌介導法轉化甜菜堿醛脫氫酶（ badh ）基因，以gus染色組織分析為依據探討了影響轉化效率的各種因素，建立了高效、可重復的基因轉化體系，為四倍體刺槐目的基因的導入打下了基礎。
  8. More diphenylthiocarbazone should be used to estimate barbiturate concentrations above 1 mg/dl.

    當測定濃度超過1毫克100毫升的巴比妥類藥物時，必須用更多的雙硫腙。
  9. Barium is found in some oilfield brines in concentrations greater than 100mg/litre.

    在有些油田鹵水中，鋇的濃度大於100毫克升。
  10. Shake - flask culture condition of lysine fermentation were studied with czl. appropriate feeding of organic niteogen sources was favorable for fermentation jn our experiment, the concentations of the yeast extract and beef extract were 15g / l and 25g / l. the initial ( nh02so4 and glucose concentrations suitable for fermentor production ranged form 55g / l and 150 - 180g / l respectively

    通過搖瓶發酵實驗初步確定czl的發酵條件為：初糖： 150 - 180g / l ，採用無機氮源和有機氮源配和使用，最佳組合是：硫酸銨質量濃度為55g / l ；酵母膏質量濃度為15g / l ，牛肉膏質量濃度為25g / l為最佳。
  11. The concentrations of heavy metals in benthos ( aquatic oligochaetes ) is remarkablely correlated with that in sediments ( p < 0. 01, p < 0

    河涌中的水棲寡毛類與沉積物中的重金屬含量顯著相關（ p 0 . 01 ） 。
  12. Impact of cyclophosphamide at different concentrations on the cell micronucleus rate of broad bean root and point

    不同濃度的環磷酰胺對蠶豆根尖細胞微核率的影響
  13. Infectivity and virulence of millet culture. the 7 - day - old broomcorn millet culture was bioassayed against m. persicae nymphs by exposing aphids to conidial showers at 9 different concentrations ( 0. 4 - 50. 1 conidia / mm2 )

    由此可見，在所測試的因素中，濕度和溫度對黍米培養物產抱的影響最為明顯，而光照影響較小。
  14. The results also revealed that it was a reasonable choice to use carbenicillin as the antibiotics of inhibiting growth of remnant agrobacterium after co - culture, and when hygromycin was used as the selective agent, continuous selection at low concentrations ( 50 ~ 150mg / l ) produced the highest numbers of transgenic plants without escapes

    試驗表明，在農桿菌介導高羊茅遺傳轉化中，抑菌劑宜選用梭節青霉素;以潮黴素作為選擇劑時，採用低濃度（ 50一15om留l ）連續篩選的方式比較合適，在該方式下，獲得的轉基因植株較多。
  15. At lower concentrations they may even be stimulants of cell division.

    在濃度較低時，它們甚至能促進細胞分裂。
  16. Japan ' s southern regions of okinawa, shikoku, and kyushu are home to the highest concentrations of centenarians

    百歲老人主要集中在日本南部的沖繩島、四國島和九州島等地區。
  17. Motile organisms may also be negatively chemotactic, swimming away from concentrations of toxic chemicals

    可以游動的生物體也有負向的趨化現象，總是遠離有害的化學物質。
  18. Conclusion the concentrations of cefoperazone sodium, chloromycetin, ciprofloxacin lactate and gentamycin sulfate showed significant influence on the coagulation time and detection rate of fibrinogen in plasma

    結論頭孢哌酮鈉、氯黴素、乳酸環丙沙星、硫酸慶大黴素等抗菌素及其濃度變化對血漿中纖維蛋白原的凝固時間和檢出率有顯著影響。
  19. Methods add the cefoperazone sodium, chloromycetin, ciprofloxacin lactate and gentamycin sulfate at different concentrations into plasma and determine the coagulation time and content of fibrinogen

    方法採用凝固法，以加入抗菌素后血漿中纖維蛋白原的凝固時間為指標，觀察不同濃度的頭孢哌酮鈉、氯黴素、乳酸環丙沙星和硫酸慶大黴素對血漿纖維蛋白原的影響。
  20. However, the detection rate of fibrinogen increased with the decreasing concentrations of chloromycetin, gentamycin sulfate and ciprofloxacin lactate, but decreased with the decreasing concentration of cefoperazone sodium

    隨著氯黴素、硫酸慶大黴素、乳酸環丙沙星濃度降低，血漿中纖維蛋白檢出率升高；隨著頭孢哌酮鈉濃度降低，血漿中纖維蛋白原檢出率亦降低。
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