box formation 中文意思是什麼

box formation 解釋
方形陣式
  • box : n 1 箱，櫃，匣，盒；罩殼；錢櫃；〈美口〉保險箱；郵箱，信箱；〈英國〉禮盒；禮物（旅行用）衣箱。2 ...
  • formation : n. 1. 構成，形成；設立；編制。2. 組織，構造；形態；形成物，構造物；【軍事】編隊，隊形；兵團。3. 【地質學；地理學】層；組； 【生物學】社區；（植物）群系。adj. -al
  1. In the present work, water plasma ion implantation, instead of the conventional oxygen plasma ion implantation, has been employed to fabricate soi materials. the masses of the three dominant ion species in the water vapor plasma, h2o +, ho +, and o +, are very close to each other, which overcome the problem of co - existence of o and 02 in oxygen plasma source. the oxygen depth profiles in the water plasma ion as - implanted silicon do not disperse much, which makes it possible for the formation of single buried oxide ( box ) layer by choosing appropriate implantation energy and dose

    本論文創造性地採用水等離子體離子注入方式代替傳統的氧離子注入方式來制備soi結構材料，由於水等離子體中的三種離子h _ 2o ~ + 、 ho ~ +和o ~ +質量數相差很小，克服了氧等離子體中因o _ 2 ~ +和o ~ +質量數相差大而引起的氧在硅中的分佈彌散，使注入硅后的氧射程分佈相對集中，比較容易退火后形成soi結構材料。
  2. With reference to the construction practice of precast concrete box girders of donghai bridge, this paper analyzes the causes of formation of cracks in the box girders at construction site, and also provides the relevant control measures and successful experiences for preventing the cracks from occurring

    摘要結合東海大橋預制箱梁的工程實踐，分析施工現場箱梁裂縫產生的原因，介紹防裂的控制措施以及取得的成功經驗。
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