渦核 的英文怎麼說
中文拼音 [guōhé]-
Found the phenomenon observed in the nematode caenorhabditis elegans for the first time in 1998, consequently similar processes have been described for drosophila melanogaster, trypanosome, mammals including humans. the mechanism is that sirnas is the mediator, which can induce the risc to the target mrna and degrade it. recently there was great progress in the specific gene therapy and anti - virus, and rnai has been a focus of rna molecular therapy
自1998年fire等在研究線蟲時首次發現以來,相繼在果蠅、渦蟲、錐蟲、小鼠及哺乳動物細胞中發現rnai現象。一般認為: rnai第四軍醫大學碩士學位論文效應作用機制是sirnaskmallinterferinguaduplex )作為中介分于,引導risc ( rnaiinducingsuppresscomplex )至靶基因m洲a處,隨后核酸內切酶將之降解。Test method for the determination of the aromatic content and polynuclear of diesel fuels and aviation turbine fuels by supercritical fluid chromatography
超臨界流體色譜法測定柴油燃料和航空燃氣渦輪燃料中芳香烴含量和多核芳香烴的試驗方法Standard test method for determination of aromatic content and polynuclear aromatic content of diesel fuels and aviation turbine fuels by supercritical fluid chromatography
用超臨界流體色譜法測定柴油和航空渦輪燃料中芳香烴含量和多核芳香烴含量的標準試驗方法Nuclear power station with pressurised water reactor is basically divided into the " nuclear island " where steam is produced in the steam generator by nuclear power generated from a reactor, a " conventional island " where steam supplied from the nuclear island is used to drive the turbine - generator to produce electricity, and the balance of plant ( bop ) which consists of the station auxiliaries and ancillary plants, etc
採用壓水式反應堆的核電站基本分為核島、常規島和核電站其他部分。由反應堆產生的核能會通過在核島內的蒸汽發生器產生蒸汽,而核島所供應的蒸汽會推動常規島內的渦輪發電機發電。核電站其他部分則包括站內的輔助設備及附屬設施等。Nuclear power station with pressurised water reactor is basically divided into the " nuclear island " where steam is produced in the steam generator by nuclear power generated from a reactor, a " conventional island " where steam supplied from the nuclear island is used to drive the turbine - generator to produce electricity, and the balance of plant which consists of the station auxiliaries and ancillary plants, etc
採用壓水式反應堆的核電站基本分為核島常規島和核電站其他部分。由反應堆產生的核能會通過在核島內的蒸汽發生器產生蒸汽,而核島所供應的蒸汽會推動常規島內的渦輪發電機發電。核電站其他部分則包括站內的輔助設備及附屬設施等。The earth ' s rotation, through the coriolis effect, deflects rising fluids inside the earth ' s core the same way it twists ocean currents and tropical storms into the familiar spirals we see in weather satellite images
地球自轉造成科氏力效應,會使地核內上升的流體偏向,就像造成洋流及熱帶風暴被扭轉成在氣象衛星影像中常見的漩渦狀那樣。It suggests that the vortex migration and crystalling phase vortex nucleation of microscale ore - forming fluid will be the another important way in which some matter in system of metallogenetic kinetics moves and exists
這暗示,微尺度成礦流體的渦旋運移與晶相渦旋成核可能是地球成礦動力學體系中某些物質運動和存在的又一種重要的形式。The phenomena of initial disturbance vorticity translating into spiral bands is most evidently for it locating at the periphery of radius of maximum wind ( rmw ), near rmw next and the spiral bands vanish when it is positioned in the inner core region. indicating that the farther the distance from the tc center, the more distinctly the spiral bands and the opposite is true
初始圓形擾動渦度場轉化為螺旋臂渦量帶的現象是初始擾動位於渦旋最大風速半徑( rmw )外圍最顯著,其次是rmw附近,當擾動位於渦旋內核區時幾乎沒有螺旋臂結構形態出現,表明,初始擾動離tc中心越遠,其強迫渦旋rossby波形成的螺旋帶結構越明顯,反之越弱。This condensate discharge from the condensers ( feed water ) is pumped back to the steam generator in the nuclear island to be converted into steam again. cooling water for the condensers is taken from the sea via the seawater pumps in the pump house
從冷凝器流出的凝結水(即給水)會泵回核島內的蒸汽發生器,然後再次轉化為蒸汽。在這過程中,蒸氣會將渦輪發電機作高速轉動(The carrier is capable of launching one aircraft every 20s. the nuclear - powered carrier has two general electric pressurized water reactors driving four turbines of 260, 000hp 194mw and four shafts. there are four emergency diesels of 10, 720hp
尼米茲級航空母艦的動力來自兩部通用動力公司的壓水式核反應堆,由反應堆推動4個渦輪,從而產生26萬匹馬力合194兆瓦的動力來驅動4個槳軸,使航空母艦的速度可以超過30節。The vortex thickness after two vortexes " pairing is two times of that of a single vortex kernel, and extends to three time of one vortex ' s thickness after three vortexes mix
兩渦配對后的渦層厚度為單個展向渦核的2倍,三渦合併后近似為單個渦核的3倍。At the same time, dispersion of different stokes number particles influenced by the ordered large - scale turbulent structures of the carrier gas phase was investigated. and the following " conclusion was drawn : particles of mediate stokes number mainly concentrated in the outer boundary region of large scale eddies, and they had the nignest dispersion rate ; particles or little stakes number mainly lay in the core region of the eddies, and they had the lest dispersion rate ; though particles of large stokes number distributed throughout the eddy structures
同時還模擬研究了不同stokes數顆粒在二維流場旋渦擬序結構作用下的運動擴散特性,詳細描述了不同stokes數顆粒在流場中的空間分佈規律,認為:中等stokes數顆粒集中於流場旋渦的外沿區域,在流場空間中的擴散率最高;小stokes數顆粒集中於流場系列旋渦的渦核區域,在流場空間中的擴散率最低;而大stokes數顆粒則遍佈於流場旋渦渦核和渦外沿區域。Aerodynamicist klaus huenecke of airbus has developed a “ passive ” scheme based on so - called designer vortices
歐洲空中巴士公司的空氣動力學專家輝奈克已研發了一個被動技術,以所謂的訂制渦流為核心。* the huge american market results from huge military helicopter demand, oil crisis in 1970s, government policy and etc. but chinese market is confined by comparatively lower gdp, weak military demand, preliminary air control and powerless industry association. * facing the keen competition, catic should further strengthen its competitive advantage in helicopter sales ability, extend its business line to supply service for helicopters such as fixed base operation
*面對日益激烈的競爭環境,中航技公司應該大力增強其在銷售領域的競爭優勢,圍繞航空產品和技術進出口這一核心業務向外圍擴展,進入直升機運營領域開展直升機服務業務及運營通用航空服務站,在新產品的研發方面則應以起飛重量不超過4噸的單發渦軸直升機為主,採用合資合作等方式。In present dissertation, dynamical process of transition from the vortex state to the core state with lower energy and no angular excitation after removing the external rotating perturbation which makes the vortex state formed in bec is discussed firstly
論文首先討論外界旋轉的微擾使bec產生渦旋,之後被撤掉,渦旋態向能量低、無角動量激發的核心態躍遷的動力學過程。According to the number and relative position of " core points " and " delta points " extracted from the fingerprint image, we classify the fingerprint into the following six classes : arch, tented arch, left loop, right loop, whorl, twin loop
通過提取出的指紋圖像中「核心點」和「三角點」的數目和相對位置,我們將指紋圖像分成了六種類型:拱型,尖拱型,左環型,右環型,渦型,雙環型。Since delays are often encountered in engineering systems, ecology systems, electricity systems, management systems and control systems such as the turbojet engine, microwave oscillator, nuclear reactor, controlability of systems and optimal control, etc. the phenomena of delays are investigated by more and more scientists
在工業工程、生態系統、電力系統、管理系統、控制系統等實際系統中常常遇到很多時滯問題,如渦輪噴氣發動機、微波振子、核反應、系統的可控性和最優控制等問題,所以時滯現象越來越受到眾多科學家的廣泛關注。In order to meet the needs for measuring the coolant water flow rate in - core of a nuclear heating reactor, two types of turbine flow meter with low rotation speed have been developed in our institute
為適應核反應堆堆芯冷卻劑流量測量的需要,開發研製了新型低速渦輪流量變送器,按流量信號輸出不同,分別為磁感應模擬信號輸出和數字開關量輸出低速渦輪流量變送器。The paper firstly analyzes the characteristics and demands of an electronic aeroengine controller, as a result, the design scheme of a primary module, which is based on dsp and can, is proposed for an electronic aeroengine controller. then, according to this scheme, a primary module is implemented by hardware design and software development. finally, a wpa aeroengine mathematical model is used to construct a matter - in - loop simulation system, with which a series of control system experiments are accomplished
論文首先分析了航空發動機電子控制器的特點,提出基於dsp帶can總線介面的航空發動機電子控制器核心模塊的設計方案;然後根據此方案,通過硬體電路的設計和軟體開發,實現了該核心模塊;最後利用渦噴a發動機的數學模型構成一個實物在迴路模擬試驗系統,並完成了模擬試驗。Hulot ' s team argues that the growth of these reversed patches, presumably eddies that are working against the primary motion of the core, can explain the current decline in the dipole field
余洛的研究小組認為,假如此區塊是一種與主要地核運動相抗衡的漩渦區,那麼此區塊的增長便可以解釋現今磁偶極場的衰減現象了。分享友人