盤根壓蓋 的英文怎麼說

中文拼音 [pángēn]
盤根壓蓋 英文
packing gland
  • : Ⅰ名詞1 (盤子) tray; plate; dish 2 (形狀或功用像盤的東西) sth shaped like or used as a tray pl...
  • : Ⅰ名詞1 (植物的營養器官) root (of a plant) 2 (比喻子孫後代) descendants; posterity 3 [數學] ...
  • : 壓構詞成分。
  • : 蓋名詞(姓氏) a surname
  1. Check that the hollow shaft and its seal are proper and that the packing gland should not compress too tightly on the packing set and the drip leakage is allowed

    檢查空心軸和軸密封程度是否適當,填料不可將得過緊,允許呈滴狀滲出。
  2. Meanwhile, according to the assessment cell of small watershed, the paper evaluates each index and compositive index. the paper can provide scientific bases for both protection and use of wetland by disclosing the spatial distributing rules and analyzing the impact on environment brought because of exploiting. the study shows that 1 ) in the structure of wetland ecosystem health of panjin city in 2000, better area accounts for 22 %, generic area 52 %, worse area 26 % ; 2 ) in shuangtaizi national wetland nature reserve, the health of many regions is better, the one of partial regions is threaten, the area of wetland is decreasing ; 3 ) in the period from 1986 to 2000, paddy field, shrimp and crab pool were increased, swamp and biodiversity were decreased gradually, and the environment of wetland was polluted gradually

    本文以生態系統學、景觀生態學、生態系統健康、區域可持續發展等理論為基礎,據聯合國經濟合作開發署提出的力-狀態-響應( psr )框架模型,以遙感數據及統計監測數據為基礎,採用rs 、 gis 、 gps技術,結合數理統計和數學模型方法,提取土地利用/土地覆信息、濕地類型信息、小流域信息、濕地景觀指數、濕地初級生產力、濕地人口力指數、濕地蓄水量、濕地污染物負荷、濕地變化等數據,建立錦市濕地生態系統健康數據庫,以小流域為評價單元,對每個小流域濕地進行單因子和綜合評價,揭示錦市濕地生態系統健康狀況的空間分佈規律,同時對濕地資源開發造成的環境影響進行剖析,為濕地資源的保護與利用提供科學依據。
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