叶片具两面有鳞的，全缘的鳞片，或浅裂的。
Leaf blade with both surfaces scaly, scales entire, or lobed.
对埋藏浅、储层温度低的油气藏进行压裂改造，需要解决压裂液低温破胶、快速返排和伤害问题。
The primal problem in low temperature and shallow gas reservoirs is to overcome the break, the flowing back, and the damage of the fracturing fluids.
对埋藏浅、储层温度低的油气藏进行压裂改造，需要解决压裂液低温破胶、快速返排和伤害问题。
The primal problem in low temperature and shallow gas reservoirs is to overcome the break, the flowing back, and the damage of the fracturing fluids.
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