BORING THROUGH ICE

摘要

"It seems quite elaborate but it is extremely important. We must make sure we don't take any microbes down there. So the Beakbane equip-ment is absolutely crucial to the success of theexpedition," said NOC'sThe bellows, whichare 5m long, with external diameter of 300 mm and internal diameter no less than 205 mm, are made in six sections. Each section is cut from clear polyurethane sheet and thermally formed. The sections and two 500-mm end flanges are then assembled and joined togeth-high-frequency welding.