Extensive walls, coated with polymer mortar, define fluid Spaces and openings positioned in all directions integrate the living areas.
涂有聚合物砂浆的大量墙壁限定了流动空间，并在所有方向布置的开口集成了生活区域。
2
It occurs as a monomer, G-actin, a globular protein, and in living cells as a polymer, F-actin, which resembles two strings of beads twisted around each other into thin filaments.