play a key role 中文意思是什麼

play a key role 解釋
起到關鍵作用
  • play : vi 1 玩，玩耍，游戲；閑逛；〈方言〉罷工 （opp work）; （動物）跳來跳去，飛來飛去，翩翩飛舞。2 （...
  • a : an 用在以母音音素開始的詞前〉 indefinite art 1 〈普通可數名詞第一次提到時，冠以不定冠詞主要表示類...
  • key : n 1 鑰匙。2 要害，關口，要沖。3 關鍵，線索，秘訣；解法。4 （外國書的）直譯本，圖例，題解，圖解，...
  • role : n. 1. （演員扮演的）角色。2. 任務；作用。
  1. Chemotaxis mediated by chemokine receptors, such as cxcr4, play a key role in lymphocyte homing and hematopoiesis as well as in breast cancer metastasis. we have previously demonstrated that ? - arrestin2 functions to attenuate cxcr4 - meidated g protein activation and to enhance cxcr4 internalization. here we further show that expression of ( - arrestin2 in both hela and hek293 cells significantly enhanced the chemotactic efficacy of stromal - cell derived factor 1 ( ( sdf - 1 ( ), the specific agonist of cxcr4

    - arrestin2是趨化因子受體的一種重要的調節蛋白，本研究工作發現在hek - 293或hela細胞中升高- arrestin2的表達水平會顯著增強cxcr4介導的趨化作用，反之當- arrestin2的表達被它的反義核苷酸或rnai所抑制， cxcr4介導的趨化作用則被明顯抑制。
  2. In order to control the land subsidence, adjusting three dimensional exploitive positions and moderately utilizing the leakage recharge from its upper shallow groundwater play a key role in realizing the sustainable development of deep groundwater resources in this area

    在控制地面沉降的條件下，深層地下水持續利用的對策是調整開采三維布局，適度開發利用淺層地下水對深層地下水的越流補給。
  3. Soil nematodes are the most abundant metazoan, which have various types of life - history and feeding habits, and play a key role in soil food web

    線蟲作為土壤中數量最豐富的後生動物，其生活史和取食類型多樣，在生態系統中發揮著重要作用。
  4. In many communities insects play a key role as herbivores and predators.

    在許多群落中，昆蟲作為植食動物和捕食者起著重要的作用。
  5. Among them, euphausia pacifica, pseudeuphausia latifrons and p. sinica are dominant species that play a key role in the china sea. by means of the vertical slab polyacrylamide gel electrophoresis, genetic heterogeneity of three krill was investigated, in order to elucidate the genetic diversity and differentiation among them

    全世界海洋中磷蝦類近90種，中國近海磷蝦類迄今已記錄2科7屬47種，其中以太平洋磷蝦、長額磷蝦、寬額假磷蝦和中華假磷蝦為主要優勢種。
  6. So the inve stigations of rempi in different systems have comprehensive value in basic field or applied field. in recently years, the photodissociation of sulfur and carbon contained polyatomic molecule has been attracted much attention because these species play a key role in atmospheric physics, environment pollution and ecological preservation

    對含硫、碳化合物的研究在大氣物理、環境污染、生態維護和生產應用中具有重要的作用，因此含硫、碳氫化合物的光解離動力學研究受到了較多關注。
  7. The coupled equation method ( cem ) has been improved to calculate 4s subshell of mnl by adding 3d ~ ( 5 ) ( ( 4 ) ~ x ) 4s ( ( 5 ) ~ x ) channels, which were verified to play a key role to the magnitude of resonance structure due to the interaction between 4s kp transition and 3p 3d excitation. our calculation shows higher symmetry and a solo peak near 51. 7ev, which is in better agreement with experimental data than garvin ' s calculation. except 3p 3d giant resonance, there are obvious 3p nd ( n > 4 ) rydberg resonances with width in the total cross section of mnl

    在研究錳原子4s殼層的共振結構時，我們首次在耦合方程方法中加入了3d ~ 5 （ ~ 4x ） 4s （ ~ 5x ）通道與大共振之間的相互作用，發現這類通道對於4s殼層的共振結構具有較大的貢獻，從而改善了在耦合方程方法中只考慮基態3d ~ 5 （ ~ 6s ） 4s （ ~ （ 7 ， 5 ） s ）的缺陷，為精確計算其他過渡金屬原子外殼層的共振結構做了很好的鋪墊。
  8. Rate - distortion analysis and rate control play a key role in video coding and communication systems by providing the rate - distortion optimized compression performance, assuring the successful network transmission of the coded video data, and achieving the best visual quality at the receiver

    為了取得最優化的壓縮效率，確保編碼數據在通道成功傳輸，並在接收端獲得最佳的視頻質量，率失真優化和碼率控制技術具有重要的地位。
  9. The euro should co titute an important reserve currency and play a key role in portfolios of financial a ets on an international scale

    歐元應該成為重要的儲備幣種，並在國際金融資產組合中起關鍵作用。
  10. Objective : flt - 3 ligand ( fins - like tyrosine kinase receptor - 3 ligand, fl ) was a recently described growth factor affecting early hematopoietic progenitor cells, that play a key role in the growth and differentiation of primitive hematopoietic cells. fl promotes the survival, proliferation, and differentiation of hematopoietic progenitors in synergy with other growth factors

    Fms樣酪氨酸激酶受體3配體（ fms - liketyrosinekinasereceptor - 3ligand ， fl ）是一種新近發現的、能夠有效地刺激早期造血的細胞因子，可單獨或聯合其他細胞因子促進造血幹細胞的增殖。
  11. Improvisational performance and creation should be brought into the curriculum system, and it should play a key role in theoretical study and teaching practice

    高師音樂教育應將「即興創作與表演」納入其課程體系中，並承擔起， 「即興創作與表演」理論研究與教學實踐的重要角色。
  12. Zhuji pearl from zhejiang province and weitang pearl from jiangsu province play a key role in the global market of fresh - water cultured pearl

    浙江諸暨珍珠及江蘇渭塘珍珠在世界淡水珍珠貿易中佔有極其重要的地位。
  13. Metal - oxide interfaces are of major importance for many advanced materials, sometimes, they play a key role for some special materials such as functional ceramics with metals, oxide dispersion - strengthened alloys, oxide coatings on metals, catalysts etc. it is well known that the macroscopic properties of materials are decided by their microstructures

    金屬-氧化物（ metal - oxideinterface ）界面在很多先進的應用材料中起著非常重要的作用，有時甚至起著決定性的作用，比如：功能金屬陶瓷材料、氧化物彌散強化合金、金屬的氧化物防護、催化劑等等。
  14. These virtual simple shear mechanisms play a key role in idealizing the soil behavior under the initially anisotropic consolidation condition. in order to overcome the numerica

    這表明在對土工構築物和土工基礎進行二維分析時，運用多機構邊界麵塑性模型是合理的。
  15. Congratulating the winners and all participants, mei shan, chairman of reed elsevier china, said : " journalists play a key role in helping educate the public about discoveries that can have an enormous impact on daily life in areas such as health, the environment, and the economy

    勵德愛思唯爾中國集團董事長梅山先生對獲獎者和所有參與者表示了衷心的祝賀， 「記者在幫助大眾了解科技探索發現方面發揮著關鍵的作用，特別是在一些比如健康、環境和經濟等會對日常生活帶來影響的領域。
  16. It could become the most exclusive cultural club in town ? but it could also play a key role in funding the arts in years to come

    它可能成為倫敦城裡最高檔的文化俱樂部，但可能也會在未來幾年在藝術品贊助方面扮演關鍵角色。
  17. Incentives to tackle deforestation and forest degradation can play a key role in combating climate change and requires a strong policy framework that is fair to poor communities, says a new report

    一份新的報告指出，為對付毀林和森林退化而提供激勵措施可以在應對氣候變化中發揮關鍵的作用，這些措施要求有更強有力的、對貧窮社區公平的政策框架。
  18. [ bali / beijing ] incentives to tackle deforestation and forest degradation can play a key role in combating climate change and requires a strong policy framework that is fair to poor communities, says a new report

    一份新的報告指出，為對付毀林和森林退化而提供激勵措施可以在應對氣候變化中發揮關鍵的作用，這些措施要求有更強有力的、對貧窮社區公平的政策框架。
  19. Human beings play a key role in air traffic management, which requires agreement between man and man, man and hardware, man and software, and man and environment

    人在空中交通安全管理中居於中心位置，需要人與人，人與硬體、人與軟體，人與環境等要素之間的契合。
  20. Meanwhile, many countries see attracting foreign direct investment ( fdi ) as an important element in their strategy for economic development because fdi is widely regarded as an amalgamation of capital, technology, market, and management. since these flows of fdi are playing and will likely continue to play a key role in the integration of china into the world economy, this dissertation focuses on the factors affecting the level of fdi across provinces in china from 1994 to 2003 and the study differentiate from other similar studies on china ' s fdi by looking at possible changes in importance of determining factors through time

    通過對外國直接投資理論的演變和新發展的回顧，總結出對我國外國直接投資的可能因素，如市場需求和市場大小、聚集程度、勞動成本、勞動力質量、科研水平、開放度等六大因素及其可行變量，如gdp 、人均gdp 、零售額、人均零售額、人口數、每平方公里公路長度、每平方公里鐵路長度、國內投資、每個工人的國內投資、累積的國內投資、累積的fdi 、 cfdi / cinv 、工程師、科學家和技工占職工數的百分比、平均工資、專利數量、大學數量、進口額/ gdp 。
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