significant surface 中文意思是什麼

significant surface 解釋
有效面積
  • significant : adj 1 有意義的；大有講究的，意味深長的。2 表明…的 （of）。3 重要的，重大的，值得注意的。4 有效的...
  • surface : n 1 表面；地面；水面；廣場，空地。2 外觀，外表，皮毛。3 【幾】面；切口；【航空】翼面。adj 表面的...
  1. From 1200 utc surface wind direction 150 degree south - southeasterly winds ; wind speed 15 knots ; visibility 10 km or above ; nil significant weather ; broken cloud at 2000 feet and broken cloud at 10000 feet

    由1200utc開始，地面風向為150度東南偏南風，風速15海里小時能見度10公里或以上並無顯著天氣狀況2000尺有疏鬆雲層， 10000尺亦有疏鬆雲層
  2. From 1200 utc surface wind direction 150 degree ( south - southeasterly winds ) ; wind speed 15 knots ; visibility 10 km or above ; nil significant weather ; broken cloud at 2000 feet and broken cloud at 10000 feet

    由1200utc開始，地面風向為150度（東南偏南風） ，風速15海里小時；能見度10公里或以上；並無顯著天氣狀況； 2000尺有疏鬆雲層， 10000尺亦有疏鬆雲層
  3. The space - time distribution of chinese semi - ari d region surface water is n ' t even, the differences in a year are obvious ; the differences of underground water between years are not so obvious as surface water, but it still has a decreasing tendency, especially in shanxi and sha ' anxi provinces. there is a significant linear correlation between the precipitation and water resources in semi - arid region, the dynamic regularity of water resources is basically same as the dynamic regularity of precipitation

    半乾旱地區地表水資源時空分佈不均勻，年內分配差別大，地下水資源年際間變化率不大，但總體有減少的趨勢，尤以陜西和山西突出。半乾旱地區降水量與水資源量線性相關顯著，降水量的變化規律基本上與水資源量的變化規律吻合。
  4. As an advanced materials preparation technology, spray - deposition has shown remarkable superiority in producing large - sized alloys and metal matrix composites. however, the spray deposeted preforms usually contain a certain quantity of porosity. besides, the oxide films on the surface of the particles lead to week metallurgic conjunction between the particles. in order to obtain an ideal structure and performance, the porous preforms need further densifying and plastical forming. in this paper, a new technology named wedge pressing was used to densify spray - deposeted 5a06 aluminium alloy, in which the large deformation can be obtained through the sum - up of local deformation and multi - step small deformation. this method can also solved the problems in traditional processing and greatly decreased the producing cost. what ’ s more, the reserch on the wedge pressing desification rules about the large - sized spray deposeted preforms was significant it was vital not only to the further densification of the prefoums but also to the further research on plastical deforming the research was also benefit to the industrialization an the application of the spray deposeted porous materials

    坩堝移動式噴射沉積技術作為一種先進的材料制備新技術，在制備大尺寸合金及金屬基復合材料方面具有顯著的優越性。然而噴射沉積坯件特別是大型坯件通常存在一定量的孔隙，顆粒表面存在一定量的氧化膜，顆粒之間未能完全達到良好的冶金結合狀態，因此需要進行后續緻密化和塑性變形才能獲得理想的組織和性能。本文採用一種新型的楔形壓制工藝，即通過局部變形、多道次小變形累積實現大變形的緻密化加工方法，對噴射沉積多孔坯料進行后續緻密化和塑性變形，很好地解決了傳統加工工藝的難題，大大降低了生產成本。
  5. They may know the surface cultural differences without necessarily understanding the deep socio - cultural values ; 2 ) culture is rooted and plays a significant role in communication ; 3 ) ethnocentrism and ignorance of the target culture ' s underlying values and norms and the lack of a thorough understanding of one ' s own culture are the main causes of socio - cultural transfer

    2 ）母語文化對人們言語行為的影響根深蒂固，文化因素對跨文化交際的成功與否起到了相當重要的作用。 3 ）缺乏目的語文化知識，尤其是深層文化知識及民族中心主義是容易引起文化遷移的原因。
  6. When sailing in waves, a part of ship bow will depart from water surface because of the significant heave and pitch ( mostly happened at bow in head seas, and may happened at stern in follow sea ). when ship enter into water once again, violent impact with waves will happen, which is called slamming

    當船舶在波浪中航行時，由於劇烈的垂蕩和縱搖，船底的一部分會露出水面（主要是在迎浪時發生在船體前部，但在低速隨浪時也可能發生在船體後部） 。
  7. In this paper, features of decadal variability and the possible mechanism of sea - air system in the pacific are investigated by using upper - ocean temperature, heat storage and wind stress data, the main results are as follows : the most pronounce decadal sign exists at about 160 meter in depth in the western pacific. there are significant decadal abrupt changes in temperature from surface to deep in the subsurface at about 1980. with different depth in the subsurface, there exist 4 types of abrupt change modes, their generation is closely related to the decadal sign which originates from the east of north pacific and propagates along the south - west subduct ion route

    研究表明，太平洋次表層海溫最強的年代際信號在熱帶西太平洋約160m深處，此信號在1980年前後從上至下，先後經歷了一次顯著的年代際突變過程，而且隨深度的不同存在著四種不同的空間突變模態，這四種模態的形成與北太平洋海溫異常的西南潛沉路徑有著密切的聯系。
  8. A higher surface coverage and a lower film capacitance were obtained with a subsequent modification with alkanethiol, indicating a significant improvement in the quality of the films

    用烷基硫醇進一步修飾席夫堿自組裝膜后，表面覆蓋度明顯增加，而膜電容顯著降低，說明膜質量得到了改善。
  9. Acoustooptic deflector is the significant component of the optical devices such as integrated optical spectrograph, tunable filter, scanner, convolver, correlator and optical switch etc. acoustooptic deflector can be divided into collinear and non - collinear, bulky and wave - guided, body devices and surface devices

    聲光偏轉器是集成光學頻譜儀、可調諧濾波器、掃描儀、卷積器等光學器件的重要組件、聲光偏轉器可分為共線式和非共線式、塊體型和波導型以及體波器件和表面波器件。
  10. The farther from drainage surface the soil mass, the more significant the phenomenon of the delay

    離排水面越遠的土體，其有效應力滯后發展的現象越顯著。
  11. The main results indicated that : significant differences exist in diurnal average transpiration rate and the range of diurnal transpiration rate ; the transpiration rate of sawtooth oak, amorpha, lalang grass varied with a regular double apex rhythm, but that of the rest varied with a regular single apex rhythm, stomatal conductance play a maximal important role in transpiration rate, temperature ( air temperature, the earth ' s surface temperature ) also influence the transpiration rate ; transpiration rate has prominent negative correlation with the relative air humidity, the biggest coefficient is 0. 866

    筆者對日照沿海防護林幾種主要木本植物和草本植物的蒸騰速率和環境因子的關系進行了研究，結果表明： 8種植物日平均蒸騰速率和蒸騰速率日變幅各異；麻櫟、紫穗槐和白茅的蒸騰速率日變換呈現出雙峰式的變化規律，其它5種植物蒸騰速率表現為單峰式的變化規律；氣孔導度影響著植物的蒸騰速率，溫度（氣溫、地面溫度）是影響植物蒸騰速率的主要因子；空氣相對濕度和蒸騰速率表現為顯著或極顯著負相關，相關系數高達0 . 866 。
  12. In the united states, nonaerospace systems, primarily for state and municipal governments, utilities, surface ? transportation companies, hospitals, and other segments of the medical community, represent a significant portion of total sales

    在美國，非航空設備的主要客戶是各州和市政府、公用事業公司、地面運輸公司、醫院和其他醫療機構，這些設備的生產占總銷售量的很大一部分。
  13. Actually, it ' s significant of area measurement on curved surface in production and research. for example, the area measurement of cartridge surface ablation is an important means to analyze the quality and shoot of cannon

    實際上在生產、科研中對曲面面積的測量有著重要的意義，如火炮藥筒燒蝕面積的測量，它是分析炮彈的質量和發射狀況的一個重要手段。
  14. Northern analysis revealed that p3galt - l was exclusively expressed in the brain while that p4galt - l was expressed highly in testis, moreover, sperm surface p4galt - l was suggested to play a significant role in signal transduction involving the acrosome reaction in the mouse. in the present study, we mainly detected the developmental expression and function of p - galactosyltransferases in mouse brain and testis. we first characterized the developmental expression of 3galt - l in mouse brain

    - 1 ， 3 -半乳糖基轉移酶- 1 （ 3galt - 1 ）主要在腦中表達，而- 1 ， 4 -半乳糖基轉移酶- 1在睪丸中表達較高，且精子細胞表面的- 1 ， 4 -半乳糖基轉移酶- 1在精卵結合后的頂體反應中發揮了重要的生理作用。
  15. Facing the fact that there are significant differences between the tribological performances of the material surface under microscopic and macroscopic conditions and little research has been made in this respect, a measurement method for the micro - tribological performances of the material surface was suggested and a special apparatus was developed

    摘要針對微觀條件下材料表面的摩擦學特性與宏觀條件下材料表面的摩擦學特性具有很大差別而國內外在該方面研究較少的現狀，提出了一種對微觀條件下材料摩擦學性能測試的方法並研製出專用儀器微摩擦測試儀。
  16. 2. the results showed that the contents of cach - extractable soil p, and soil test phosphorus ( olsen, bray, mehlich - 3 ) and algae - available p contents ( naoh - extractable soil p ) in the soils correlated significantly with the contents of ortho - p, particulate p and bioavailable p in runoff, respectively, which were feasible to be used as primary indices to evaluate of agriculture p impacting on surface water quality. the results also showed that the relationships between the phosphorus sorption of soil index ( psi ), and the degree of soil saturation with phosphorus ( dpss ) and the contents of ortho - p, particulate p and bioavailable p in runoff reached significant level, respectively

    黃壤旱地土壤易解吸磷（ cacl _ 2 - p ） 、土壤有效磷（ olsen - p 、 bray - p 、 mehlich - 3 - p ）或藻類可以利用的土壤磷（ naoh - p ）與地表徑流中顆粒態磷、生物有效性磷和磷酸根態磷之間均存在顯著的相關性，在一定的程度上可用cacl _ 2 - p 、 olsen - p作為指示黃壤旱地地表徑流中磷潛在流失的預警指標，來判斷旱地存在磷素非點源污染的可能性。
  17. Hurricanes are expected to be more intense as sea surface temperatures rise, but there is significant uncertainty about how other influences on hurricane strength will change, the american meteorological society says

    美國氣象學會表示，當海面溫度上升，颶風預期將更為強烈；但其它因素是如何影響颶風依舊十分不確定。
  18. The development of mass transfer in the system of vapor - liquid - liquid three - phase distillation from trays was introduced, the effects of the hydrodynamic conditions e. g. vapor velocity and ratio of liquid to vapor loading and physical properties of liquid phase, including surface tension, interfacial tension, viscosity or dispersion viscosity, density, relative volatility etc. and the volume ratio of oil to water on mass transfer were discussed systematically, the influence of the second liquid on mass transfer efficiency was also investigated, a gnat deal of viewpoints and suggestions having been put forward in this paper are significant important for optimizing design of distillation tower

    摘要介紹了氣液液三相精餾塔板傳質性能研究的進展情況，討論了氣速、液氣比等操作條件，表面張力、界面張力、液體的粘度或分散粘度、密度和相對揮發度等物系性質以及油水體積比等多種參數對傳質效率的影響，探討了第二液相的存在對傳質的影響，文中的許多觀點獲和建議對于優化精餾塔的設計具有重要的指導意義。
  19. Tooth surface temperature and thermal equilibrium conditions have significant effects on gear performance and failure as well as lubrication system in high - speed gear transmissions for aerospace applications

    高速重載齒輪傳動系統的熱平衡狀態以及輪齒表面溫度的大小對齒輪傳動的性能與失效以及齒輪潤滑系統的設計與操作控制等有著重要的影響。
  20. Customized tips can also be accommodated to pierce or wipe away contaminants or surface oxides, although for the majority of applications, a spherical tip provides significant surface area to satisfy the most demanding of requirement

    定製的尖部也容易刺破或擦去污染物或表面氧化物，盡管對于大多數應用而言，球形頂部提供更多的表面積來滿足最苛刻的要求。
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