退化氣門 的英文怎麼說

中文拼音 [tuìhuàqìmén]
退化氣門 英文
degenerative spiracle
  • 退 : 動詞1 （向後移動） retreat; draw back; move back 2 （使向後移動） cause to move back; remove; wit...
  • 氣 : Ⅰ名詞1 （氣體） gas 2 （空氣） air 3 （氣息） breath 4 （自然界冷熱陰晴等現象） weather 5 （氣味...
  • 門 : Ⅰ名詞1 （房屋、車船等的出入口 ） entrance; exit; door; gate 2 （形狀或作用像門的東西） switch; va...
  • 退化 : become vestigial; degenerate; deteriorate; retrograde; devolution; retrogradation; retrogression;...
  1. ( 3 ) 6000 - 5000ab. p, through comprehensive analysis of these proxy climatic substitute indexes indicates : this was a dry and cold period in which the temperature was the lowest and the precipitation was the least ; the vegetation may mainly be forest prairie ; in the early stage of the period appeared yangshao middle culture - the prosperous culture of miaodigou type, and in the late stage there was yangshao late culture - the culture of xiwang village type

    P出現了老官臺文化，中後期即本區老官臺文化之後，出現了仰韶早期文化。門） 6000 5000ab p ，綜合多氣候代用指標的分析結果表明：本期氣候為全新世以來溫度最低、降水量最少的最乾冷時期，在這種乾冷氣候條件下，在前期氣候最適宜期發育的森林植被發生了退化，當時的植被可能以森林草原為主。
  2. The renewal and reconstruction measures are made on the machine houses of the lifts, the gates, the lifts and the electric equipments concerned for the problems therein such as the aging, degradation, poor performance and the decrease of the safety factors of both the gates and lifts etc., from which better reconstruction effect is obtained at last

    針對其閘門及啟閉機老化、退化、性能落後、安全系數下降等問題，採取了封閉啟閉機房、閘門改造、更新改造啟閉機及電氣設備等措施，取得了良好的效果。
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