The existence of vast area of tight sand rock, low permeability of sand rock and plenteous gas supply are all favorable conditions for the formation of deep basin gas traps.
大面积致密砂岩的存在、砂岩的低渗透性以及充足的天然气供应都是形成深盆气藏的有利条件。
Fault carrier systems are important medium for fluid migration from deep to shallow. Also they are important factors to compose of the structural traps.
断裂输导体是油气由深到浅运移的重要介质，同时也是构造圈闭形成的重要条件。
His choice had been to stay in the deep dark water far out beyond all snares and traps and treacheries.
它选择的是待在黑暗的深水里，远远地避开一切圈套、罗网和诡计。
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