An elastic tubular channel, such as an artery, a vein, or a capillary, through which the blood circulates.
一种有弹性的管道，例如动脉、血管或毛细管，血液通过它们进行循环。
2
OKALUX, like channel glass, is an insulating glass product that, per the catalog, features, "a translucent capillary slab covered with glass fiber tissues in the cavity."