wdl 中文意思是什麼

wdl 解釋
參考手冊
  1. The sequence of biomass was : wdl > pgl > wtl > al. the results showed the similarity between field and green land was the highest, the

    3 ）農田生境:留鳥比例最高，旅鳥最少，珍稀鳥類最少，最重要的鳥類有9種。
  2. The whole name of this steel is lower weld crack sensitivity steel o7mncrmov ( shorted as wdl )

    該鋼種的全稱為低焊接裂紋敏感性07mncrmov系列鋼（簡稱wdl鋼） 。
  3. Wdl is a certain steel which has lower sensitivity to weld cold crack and need not or a little warm - up before weld

    國產wdl鋼種是一種對焊接冷裂紋敏感性低、焊接前不要預熱或稍加預熱而不產生焊接冷裂紋的鋼板。
  4. To study the series wdl steel ? property of probability fracture mechanics, it is not only the foundation of safety assessment and probability analysis to pressure vessel but also the foundation of the study of assessment criterion on pressure vessel

    對wdl鋼種進行系列規范性的概率斷裂力學試驗研究，不僅為壓力容器的安全評定和可靠性分析打下基礎，同時為壓力容器評定規范研究打下基礎。特別是對首都周圍的石化企業中的壓力容器安全評定研究。
  5. The sequence of density was : pgl > wdl > al > wtl. the sequence of dominance was : pgl > wdl > wtl > al

    優勢度最高的是農田，依次是公共綠地、林地、濕地
  6. In the four typical habitats, the sequence of species richness was : pgl ( public green land ) > wtl ( wetland ) > wdl ( woodland ) > al ( agriculture land ), among which pgl and al contained 107 and 76 species, respectively

    種類最多的是公共綠地生境，計107種；種類最少的是農田生境，計76種。密度最大的是公共綠地鳥類群落，依次是林地、農田、濕地。
  7. Currently, guidelines for this new scholarship program are being developed in hopes of announcing the first wdl scholar during the fall semester this scholarship program will reside in the newly named office for international programs and services under the direction of the provost ( and associate dean of the center for academic programs and services )

    目前這項新的獎學金項目有希望在秋季學期提供第一筆wdl獎學金.此項目將由新命名的國際項目和服務機構的主管方（學術項目和服務機構的中心主任）直接管理。
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