crossover 中文意思是什麼

crossover 解釋
【鐵路】岔道,轉線路,【生物學】(雜色體的)交雜,交換;交換型;〈英國〉(交搭胸前的)女圍巾。

  1. Annulus tubing crossover

    環空油管轉換接頭
  2. In addition to avermectins, s. avermitilis produces oligomycin, a strongly toxic compound. gene deletion vector pxl05 was used to disrupt oligomycin polyketide synthase ( pks ) encoding genes ( olma ) in streptomyces avermitilis cz8 - 73, the producer of anthelmintic avermectins b and the cell growth inhibitor oligomycin. olma gene cluster in the chromosome was displaced by deletion allele on the plasmid via double crossover

    本研究以產阿維菌素b和寡黴素的阿維鏈黴菌cz8 - 73為出發菌株,構建了基因缺失載體pxl05 ,並將其轉入cz8 - 73中,通過缺失載體和染色體之間的同源雙交換,對染色體上長達90kb的寡黴素聚酮合酶( pks )基因簇( olma )進行了缺失。
  3. Sales : imported and domestic natural rubber, butylbenzene rubber, polybutadience rubber, butyronitrile rubber, epdm rubber, butyl rubber, chlorosulfonated polyethylene tyre types superfine, smell - free, butyl, butyronitrile, color and milk natural rubbers, compound rubbers and reclaimed rubbers ; raw and auxiliary materials for rubber chemical such as rubber accelerator, antiager, black, paraffin, octadecoic acid, zinc oxide, magnesium oxide, titanium pigment, coumarone and powder sulfur ; different specifications of epdm color granules, crossover antiskid rubber floor brick, plastic rubber sites, lawn layout, different specifications of antiskid rubber floor brick, rubber blind - people road brick, plant brick, tree guard brick, top adiabatic brick, road rubber reducer brick, special green rubber tyre rubber granule, rubber powder and product, different rubber and plastic pipe, adhesive tape and plate, flexible rubber soft joint, rubber stop tape, bridge extension device, natural rubber plate pedestal, water - expanding rubber, rubber and plastic air duct, pe / pp / pvc water pipe, fulgurite, flame retardant wire gutter, floor wire gutter, mc nylon product, rubber and plastic machinery and fitting relieve, and processing of different ordinary and special rubber and plastic and nylon products

    經營銷售:進口、國產天然膠、丁苯膠、順丁膠、丁腈膠、三元乙丙膠、丁基膠、氯璜化聚乙烯、輪胎類精細、無味、丁基、丁腈、彩色、乳膠類等多種型號天然橡膠、合成橡膠和再生橡膠;硫化促進劑、防老劑、炭黑、石蠟、硬脂酸、氧化鋅、氧化鎂、鈦白粉、古馬龍、工業硫磺粉等各種橡膠化工原輔材料;各種規格epdm彩色顆粒,天橋防滑橡膠地磚、塑膠場地、人造草坪鋪裝、各種規格防滑橡膠安全地磚、橡膠盲道磚、植草磚、樹木圍護磚、屋頂隔熱板、道路橡膠減速塊,專用綠色環保型橡膠輪胎膠粒、膠粉及成品,各類橡膠、塑料膠管、膠帶、膠板,可撓曲橡膠軟接頭,橡膠止水帶,橋梁伸縮裝置,天然膠板式橡膠支座,遇水膨脹橡膠,橡膠、塑料導風筒, pe pp pvc水管、電管、阻燃線槽,地板線槽、 mc尼龍產品、橡塑機械及配件調劑,並承接各種普通、特種橡塑、尼龍產品加工製造。
  4. The research of crossover operator of genetic algorithms

    遺傳演算法的交叉運算元研究
  5. A unique crossover on the caribbean coasts -

    難得一見的加勒比海沿岸音樂crossover
  6. Perform crossover operations on the present solutions

    對當前解執行交叉操作。
  7. Multi - parent - crossover niches evolutionary algorithm

    基於多父體雜交的小生境演化演算法
  8. Crossover tabu search for traveling salesman problem

    一種求解旅行商問題的交叉禁忌搜索
  9. This is an experimental reader / writer crossover magazine

    這是一本你是讀者皆筆者的網路實驗雜志
  10. Investigation of the dimensional crossover in pr - doped bi2sr2ca1 - xprxcu2oy system

    體系維數渡越的研究
  11. An assessment of the bioequivalence in s - sequence four - period crossover design

    4設計的生物等效性評價
  12. Approach on break crossover point diastrophism direction of break coal intersecting line drawing in complex structure area

    復雜構造區斷煤交線繪製法中斷裂交點錯動方向的探討
  13. Furthermore, the dq value ranges of profile multifarctal spectra in different landform types and in different directions of the same sections perform different properties and anisotrpies. it can be concluded that the landscape fractal properties depends closely on the int ensity, manner and inhomogenity of exogenic and inogenic processess, and with the properties, we can study quantatively the dynamic geomorphic process. by using the same methods just above, local fractal dimensions d, crossover length tc and the multifractal spectra dq - q of two large - scale landform profiles ( across and along tianshan mountain ranges respectively ) are calculated. the results show that in the studied scaling range the two profiles perform different scaling properties, and both of them can be divided to three evident different linear scaling subsections

    不同類型地貌區二維地貌表面也表現出多度域分形特徵,而且隨著觀測尺度的增加,每個區間的分維值均表現為依次減小,表明外營力作用的影響逐漸被內營力作用所取代:不同類型地貌區在相應區間的分維值表現為高山區中低山區盆地區,體現了不同類型地貌表面粗糙性或復雜性的差異,因此分維值大小可作為地貌表面外營力侵蝕作用強度的重要指標:利用標度區的間斷點和各種地貌類型表面分維值或宏觀效應趨於一致,提出5 - 6km左右可作為地貌的宏觀臨界點,並且與利用地貌剖線研究所得到的5km這一數值是基本吻合的。
  14. Design and improvement for interstage crossover of the multistage liquid hydrogen pump

    多級液氫泵級間導葉的設計與改進
  15. This paper presents a approach of module level fault diagnosis for large - scale tolerance analog circuit based on the neural network and the crossover tearing technology according to conventional circuit decomposition technology in large - scale circuits

    本文在傳統的大規模電路的撕裂演算法的基礎上,提出了基於神經網路和交叉撕裂法的大規模容差模擬電路診斷方法。
  16. Through the simulation of large - scale circuit simulation proved that use the crossover tearing technology could detailed network structure, simplify the diagnostic process, and the neural network can parallel deal with the diagnosis information, and the logic operation can judge the information of the multi - fault. the illustrative simulation shows that it can increase the diagnosis speed and decrease the workload before test

    通過對大規模模擬電路的模擬證明,使用交叉撕裂明細網路結構,簡化診斷過程,且運用神經網路組對信息進行并行處理,邏輯分析運算對多故障信息進行處理判斷,大大提高了故障診斷速度,減小了測前工作量。
  17. The assimilation scheme uses a blending approach based on optimal linear interpolation. the improvement is 45 % for the phase - lag of s2 after assimilating the altimetric data of the crossover points, while the correction for the diurnal constituents is not so good as for semidiurnal constituents

    利用基於最優插值法的混合法將交叉點的調和常數同化到動力模式中,同化后s _ 2分潮的遲角精度改進最大,可以改進45 ,結果顯示高度計資料的分析結果對模式結果的精度影響很大。
  18. The crossover and the trailing frog of electricity supply of trolley wire network

    無軌電車供電觸線網交叉器和並線器
  19. The state - owned stock reduction is the crossover to the standardization of stock market, the deep reform of national - enterprise, the strategic adjustment of overall arrangement of state - owned economy and the complete development of welfarism. therefore, the problem has extremely value to the order - development of stock market

    國有股減持是證券市場規范化、國企股份制改革深化、國有經濟布局戰略調整和社保制度完善的一個交匯點,對這一問題的研究有著很強的現實意義。
  20. 281 double crossover mutants were examined by fermentation experiments and hplc analysis for production of polyketides. besides avermectin b1a and b2a, a new compound ( about l ~ 4ug / ml ) which showed a retention time and fragmentation patterns identical to those of the authentic sample of 22, 23 - dihydroavermectin bla by hplc and lc / ms analysis were detected in culture extracts of 27 isolates

    在篩選的281個雙交換突變株中,有27株除了產生阿維菌素b1a和b2a ,還產生一個新組分,經hplc和lc ms分析,證實該組分為c - 22 , 23雙氫阿維菌素b1a (即伊維菌素b1a ) 。
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