alternate base 中文意思是什麼

alternate base 解釋
備用基地
  • alternate : adj 1 交替的，輪流的。2 隔一的，間隔的。3 備用的，補充的；預備的，候補的。4 【植物；植物學】交錯...
  • base : n 1 基底，基，根基，底座；底層，底子；（紀念碑等的）基址；（山）麓。2 【軍事】基地，根據地。3 根...
  1. Leaves tufted ; stipes 15 - 30 cm long, densely scaly at base, glabrous above ; sterile lamina about 60 cm long and 20 cm wide, simply pinnate ; pinnae numerous, alternate or subopposite, linear - lanceolate, the largest about 12 cm long and 1 cm wide, base cordate, apex acuminate, margin finely toothed ; veins close, forking once or twice and forming areoles near the midrib ; fertile lamina similar to sterile ones, but somewhat reduced, about 8 cm long and 0. 4 cm wide, lower surface almost entirely covered with sporangia

    葉簇生；葉柄長15 - 30厘米，基部密被鱗片，向上近光滑；不育葉片長約60厘米，寬20厘米，一回羽狀；羽片多數，互生或近對生，線狀披針形，最長者長達12厘米，寬約1厘米，頂端長漸尖，基部心形，邊緣有細密鋸齒；葉脈1 - 2次分叉，近中脈形成網眼；能育葉與不育葉相似，但較小，長約8厘米，寬約0 . 4厘米，下部滿布孢子囊。
  2. Leaves alternate, thinly leathery, obovate, narrowly obovate or oblong - obovate, 6. 5 - 16 cm long and 3. 5 - 6. 5 cm wide, apex abruptly short acuminate, or acuminate, base cuneate or broadly cuneate, dark green and glossy above, glaucous beneath ; petioles 1. 5 - 2. 5 cm long, without stipular scars

    葉互生，薄革質，倒卵形或長圓狀倒卵形，長6 . 5 - 16厘米，寬3 . 5 - 6 . 5厘米，先端驟狹短漸尖或漸尖，基部楔形或闊楔形，上面深綠色，具光澤，下面被白粉；葉柄長1 . 5 - 2 . 5厘米，無托葉痕。
  3. Leaves tufted ; stipes stout, up to 1. 2 m long, densely covered with golden brown hairs at base ; lamina up to 2 m long and 1 m wide, tripinnatifid ; pinnae alternate, sparsely spaced ; pinnules linear - lanceolate, to 15 cm long and 1 - 2. 5 cm wide, short - stipitate ; ultimate lobes linear, more or less falcate, shallowly serrate, dark green and shining above, light green to glaucous below

    葉簇生；葉柄粗壯，長可達1 . 2米，基部亦密被金黃褐色毛；葉片長可達2米，寬達1米，三回羽狀分裂；羽片互生，疏離；小羽片線狀披針形，長達15厘米，寬1 - 2 . 5厘米，具短柄；末回裂片線形，略呈鐮狀，邊緣有淺鋸齒，上面深綠色，有光澤，下麵灰白色。
  4. Leaves alternate ; petioles short, puberulous ; blade leathery, elliptic to oblong, 6 - 12 cm long, 2. 5 - 4 cm wide, apex acute or obtuse, base nearly rotund or slightly oblique

    葉互生；葉柄短，被疏柔毛；葉片革質，橢圓形至長圓形，長6 - 12厘米，寬2 . 5 - 4厘米，頂端急尖或鈍，基部近圓形或稍偏斜。
  5. Element in a page to specify an alternate base path

    元素，以指定替代基路徑。
  6. In vsam, a collection of items used to sequence and locate one or more data records in a base cluster. each alternate index record contains an alternate key value and one or more pointers. when the alternate index supports a key sequenced data set, each data record ' s prime key value is the pointer. when the alternate index supports an entry sequenced data set, the data record ' s rba value is the pointer

    在虛擬存儲存取方法（ vsam ）中，用於定序和定位基簇中的一個或多個數據記錄的項的匯集.每個備用索引記錄包含一個備用關鍵字的值和一個或多個指針.當該備用索引支持某個關鍵字順序數據集時，每個數據記錄的主關鍵字值就是這種指針.當該備用索引支持某個輸入順序數據集時，該數據記錄的rba （相對位元組地址）值就是這種指針
  7. Invsam, a named, logical entity providing access to the records of a base cluster either directly or through an alternate index

    在虛擬存儲存取方法（ vsam ）中，提供對一個基簇中的記錄進行直接存取或是通過輔助索引存取的一個命名邏輯實體。
  8. ( 2 ) some studies are made for the subject of various effects on wave propagation and ground motion of multi - dry, multi - saturated, and alternate dry and saturated soil layers. a comprehensive computer program is compiled, accounting for soil dilatancy, linear and non - linear constitutive relation, rigidity degradation and suiting to any combinations of soil layers, dry and / or saturated with different thicknesses, properties, continuity conditions at interfaces, and inputs at base and top boundaries. from the numerical results obtained for a quite large number of typical cases, some knowledge of general trends of response for, especially, the cases of alternate dry and saturated soil layers are gained both quantitatively and qualitatively

    （ 2 ）對不含水土層分層排列、飽水土層分層排列、不含水土層與飽水土層分層交錯排列情況下對波傳播和地面運動的影響做了一些研究，考慮到土壤的剪脹性、線性和非線性本構關系，剛度退化等因素，編制了可適用上述各種情況和任意多土層（包括含水或不含水、力學性質不同、厚度不同、邊界連續條件不同等） ，在不同基底輸入或上邊界輸入作用下的通用分析程序，通過對相當數量的典型情況進行的分析計算，得到了一些趨勢性的認識，特別是對飽水與不含水土層分層交錯情況，取得了一些新認識。
  9. Contemporary and long - range education is the new - style education form that uses the contemporary it method such as network technology, multimedia technology to begin, it is to build the network education on base of technology of communication of contemporary electron information, give teacher and student with the face, teach by correspondence education and broadcasting television ( seeing and hearing ) education is auxiliary, it gives priority to body with learner, basically apply between student and teacher, student and educational orgnaization a variety of media undertake with a variety of alternate meanses systematic education and communication are contacted

    現代遠程教育是利用網路技術、多媒體技術等現代信息技術手段開展的新型教育形態，是建立在現代電子信息通信技術基礎上的網路教育，以面授教學、函授教學和廣播電視（視聽）教學為輔助，它以學習者為主體，學生和教師、學生和教育機構之間主要運用多種媒體和多種交互手段進行系統教學和通信聯系。
  10. It may have spines at the base of the strongly three - veined alternate leaves

    葉互生、柄短，基生3出脈，具鋸齒。
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