They are gaps in the sun's magnetic field which make a hole through the star's super-hot outer atmosphere — the corona — allowing gas to escape, according to a NASA description.
We are aware that at the end of the central hole in this outer ear there is something called the middle ear, with an eardrum and a few little bones.
我们知道，在外耳中孔的底部有东西称为中耳，它由一个耳鼓和一些小骨骼构成。
3
Computers were connected to the Ethernet cable through "taps," where a hole is punched through the coax cladding and the outer conductor so a connection can be made to the inner conductor.