Passages are drilled in the crankshafts of diesel engines to provide lubricating oil to the （）.
Passages are drilled in the crankshafts of diesel engines to provide lubricating oil to the （）.
The ports are drilled in the liners at an angle of approx 202103 the result being that （） is given a rotary movement.
The ports are drilled in the liners at an angle of approx 202103 the result being that （） is given a rotary movement.
A spring is an area on the surface of the Earth where the water table intersects the surface and water flows out of the ground, while a well is human-made hole that is dug or drilled deep enough to intersect the water table.
A spring is an area on the surface of the Earth where the water table intersects the surface and water flows out of the ground, while a well is human-made hole that is dug or drilled deep enough to intersect the water table.
For traps that have not been drilled, the Class I traps in the evaluation of trap geological confidence refer to the low-yield oil and gas flow obtained after drilling and formation testing. Compared with the traps that have obtained industrial oil and gas flow, the various geological conditions of accumulation are More favorable.
For traps that have not been drilled, the Class I traps in the evaluation of trap geological confidence refer to the low-yield oil and gas flow obtained after drilling and formation testing. Compared with the traps that have obtained industrial oil and gas flow, the various geological conditions of accumulation are More favorable.