pump shaft failure
The Martian atmosphere is composed primarily of carbon dioxide (about 95.3%), with traces of nitrogen (2.7%), argon (1.6%), and other gases. This composition, combined with the low pressure, leads to several unique environmental conditions on the planet.
2, according to the aperture is not the same, the drill can be divided into light drilling rig, medium drilling rig, heavy drilling rig.
2, according to the aperture is not the same, the drill can be divided into light drilling rig, medium drilling rig, heavy drilling rig.