downstream 中文意思是什麼

音標 ['daʊnstri:m]
downstream 解釋
adv. 動詞 副詞 ,adj. 形容詞 順流（的）；在下游（的）。

  1. In arid climates, surface water is generally better than ground water in headwater areas, but poorer downstream.

    在乾旱氣候的上游區，地表水一般較地下水好，但下游的地表較差。
  2. We backtrack, cross downstream

    我們原路返回，穿越下游
  3. Throughput - another term for a cable modem ' s downstream capacity

    吞吐量-有線數據機下行容量的另一術語。
  4. Besides the current development of carbinol industry, the article describes the research of carbinol downstream products both domestic and abroad, as well as the application and development direction in industrial field

    報道了甲醇工業發展的現狀，綜述了國內外甲醇下游產品的開發研究，從幾個方面論述了甲醇在工業生產上的應用及其發展方向。
  5. Degenerate oligonucleotides to highly conserved regions of cucumis melo 1 - aminocyclopropane - 1 - carboxylic acid ( acc ) oxidase gene were used to prime the amplification of fragment of 128bp by ploymerase chain reaction ( pcr ) in samples of genomic dna from fruit of cucumis melo l. cv hetao flesh, which was cloned into plasmid vector pmd - 18 - t. the clon of antisense orientation were selected, and it was inserted downstream of camv35s promoter and enhancer " " of tmv into the plant expression vector pbinyxw, antisence expression vector pbinya was constructed. at the base that pollination and fertilization of cucumis melo l. cv hetao was studied, using pollen tube pathway transformate cucumis melo l. cv hetao, 76 fruit had been obtained, moreover, hardness and content of sugar were analysed

    本實驗以河套蜜瓜果肉基因組dna為模板，用甜瓜acc氧化酶基因特異寡核苷酸鏈為引物進行pcr擴增，得到128bp的擴增產物。將得到的擴增產物克隆到質粒載體pmd - 18 - t上，篩選反向克隆，然後將其反向構建到植物表達載體pbinyxw的camv35s啟動子和tmv增強子「 」的下游，構建成反義表達載體pbinya 。並在對河套蜜瓜授粉受精生物學研究的基礎上，通過花粉管通道法轉化河套蜜瓜，共獲76顆瓜，並進行了硬度和含糖量的分析。
  6. With development and maturation of citrus fruit, chlorophyll content of citrus fruit peel decreased, being acompanied by a gradual decrease in a - carotene and p - carotene which are known to be in the upstream of carotenoid biosynthesis pathway. the decrease continued up to complete vanishment of the carotenes. on the other hand, p - cryptoxanthin, p - citraurin and zeaxanthin that are in the downstream of carotenoid biosynthesis pathway increased steadily and became the principal carotenoid components

    隨著柑橘果實發育和成熟，果皮葉綠素含量下降，與此同時，位於類胡蘿卜素生物合成途徑上游的-胡蘿卜素、 -胡蘿卜素等胡蘿卜素成分逐漸下降直至消失，而在類胡蘿卜素生物合成途徑下游的-隱黃質、 -檸烏素、玉米黃素等葉黃素成分逐漸上升，使得類胡蘿卜素總量先略微下降后迅速上升；果實褪綠並呈現其特徵色澤。
  7. Using the model experiment data, the authors calculate the decreased percentage of water jump length, unit width hydraulic jump volume and the water depth downstream of the jump ; and also calculate the energy dissipation rate of dentoid baffle, it is concluded that the device of dentoid baffle can increase the energy dissipation rate of hydraulic jump theory and decrease the engineering cost

    計算了新增齒墩設施的消能量，同時計算了新增齒墩設施的躍后水深、水躍長度和單寬水躍容積減少的百分數。結果表明，採用齒墩設施，可增進消能作用，並取得顯著的經濟效益，達到附加射流水躍理論所預期的效果。
  8. The water current flows over the top of the dentoid baffle to the hydraulic jump as additional momentum. while it is cooperated with a stilling basin, the flowing condition emerged in the basin may be improved greatly and the length and downstream water depth required by the basin can be decreased to a great extent. such an appliance may be also used to solve the problems of insufficiently dissipating water flow energy and aerating flow, which are often faced with those hydraulic engineering constraction as acted by high waterhead, great specific discharge and low froude number

    本文通過齒墩頂部的擴散水舌所形成的附加射流，從上部射入水躍，即可改善消力池內的水流流態，又可降低第二共軛水深，減小水躍長度，增進水躍消能效果，同時還能解決大單寬、低佛勞德數條件下摻氣和消能不足的問題，試驗證實它是一種安全、經濟的消能工。
  9. Research on peculiarity of wave in the downstream of diffluent piers with low ridge

    低坎分流墩消能工下游水流波動特性研究
  10. When a particle is dislodged from the surface it moves downstream by suspension, surface creep, or saltation.

    顆粒脫離表面后，以懸浮，爬行或跳躍形式向下游運移。
  11. Is the water polluted at source or further downstream ?

    河水是在源頭還是在流出之後受到污染的？
  12. These constitute the upstream and downstream faces of the porous domain.

    這些是由多孔區的上游面和下游面組成。
  13. Meanwhile, at home our life flowed placidly downstream.

    與此同時，在國內方面，我們的生活無聲無息地走向下坡路。
  14. The construction of a dam influences downstream channel stability in two ways.

    水壩的建設在兩個方面影響下遊河道的穩定。
  15. Norma is downstream a little on the bank, vigorously scrubbing his soiled clothes.

    諾瑪在下游不遠的岸邊上，使勁搓洗他的臟衣服。
  16. When the downstream head is greater than about 3/5 of the upstream head, flow is submerged.

    當下游壓頭大於上游壓頭約35時，流量是潛流。
  17. Stream standards refer to quality of receiving water downstream from the origin of sewage discharge.

    水體標準是指污水排放點下游的受納水體的水質。
  18. The salt water, being more dense, flows upstream under the fresh water which is flowing downstream.

    淡水在上層向下流動，比重更大的鹽水在下層逆流向上。
  19. These wastes are sluiced directly into streams, they may create severe downstream sediment damages.

    這些廢料直接排入河流，可以引起嚴重的下游泥沙危害。
  20. Thus it was demonstrated that the main pressure zone was little affected by the downstream flow condition.

    由此可見，下游的流動情況對主要壓力區幾乎沒有影響。
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