natural sag 中文意思是什麼
natural sag
解釋
自然垂度-
Firstly, based on the basin prototype, the triassic and jurassic mudstone and coal, the main source rocks of the basin, did not develop better in baicheng sag than in the northern thrust belt including keyi structural belt ; secondly, because of the thrusting happened in late cenozoic, the triassic and jurassic source rocks reach to a high to over high maturity and thus generate gas or condensate oil mainly. thirdly, the thrust faults compelled the natural gas to migrate from the north to the south or from the deep to the shallow. as a result, the keyi structural belt and the eastern qiulitage structural belt enriched in natural gas because they were not only located on the migration routines of the natural gas, but also developed simultaneously when the gas migration happened
從盆地構造史研究的角度認為庫車盆地的天然氣主要來源於北部山前沖斷帶： 1受原型盆地構造格局的制約，三疊系侏羅系烴源巖發育的最有利位置不是在拜城凹陷，而是在克依構造帶及其以北的北部山前沖斷帶2晚第三紀以來的逆沖推覆作用使得烴源巖提早進入高過成熟階段，並以產氣和凝析油為主3逆沖推覆作用所產生的北傾逆斷層控制天然氣自下而上自北而南運移，位於運移路線上的克依構造帶和秋里塔格構造帶的東段與烴源巖的排氣期匹配較好，從而使這些地區最富集天然氣。 -
This difference is caused not only by maturity but also by source rock. natural gas in baimiao area is mainly derived from tertiary source rock and carboniferous permian formation in qianliyuan sag, which is near the high point on lanliao fracture belt
白廟地區天然氣主要來源於前梨園窪陷第三系烴源巖和石炭?二疊系煤系地層，靠近蘭聊斷裂帶構造高點，淺層es _ 2 ~下? es _ 3 ~ 2氣層具有較高的ar ~ （ 40 ） ar ~ （ 36 ）比值，為煤型氣及混合氣。 -
The cable sag and bending stiffness effects are studied on the higher natural frequencies of cable vibration. it is found that the differences of the higher adjacent frequencies go to the fundamental frequency of the taut string theory even though the cable sag or bending stiffness is included. this unique characteristic of cable vibration is used to determine the cable tension with the well - known taut string theory
2 .考慮垂度和抗彎剛度對高階自振頻率的影響，探討了索相鄰頻率之差，發現索的高階頻差就是弦振動理論的基頻，利用這一特性，分析了頻差法測索力的精度和適用范圍。
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