The functions of separation, combination and retraction of the groundpole are fully utilized to make fishing convenient and clean.
充分活用插地杆的离、合、 缩的功能，使钓鱼既方便又干净。
2
Astrophysicists working with ground-based detectors at the South Pole and balloon-borne instruments are closing in on such structures, and may report their findings soon.