Daily massages with large pumice stones and coconut husks , to keep their blood circulation healthy

用大浮石和椰壳按摩，以保持它们血液循环畅通

The pumice comes from italy ; and the pigment which gives " the plug " its color is cadmium sulfide .

浮石来自于意大利而给“塞子”上色的颜料则是硫化镉。

Doo town , taishan pumice stone of the village committee .

台山市斗山镇浮石村民委员会。

" Beside a pumice isle in baiae 's bay , and saw in sleep old palaces and towers quivering within the wave 's intenser day , "

就在巴亚海湾的一个浮石岛边，它梦见了古老的宫殿和楼阁在水天辉映的波影里抖颤

" In guatemala city [ the pumice is ] unconsolidated , it ` s loose , " he said . " It hasn ` t been hardened into a rock yet , so it ` s easily eroded , especially by swift running water . "

他提到：“危地马拉城的（浮石）非常松散，至今仍未形成坚硬的岩石，因此很容易被侵蚀，尤其易受快速流动的水体影响。”