波纹pvc
beloved pet───心爱的宠物
balled up───搞成一团糟;使混乱
belled───adj.套接的,有钟形口的
belly pan───肚皮盘
belted out───vi.引吭高歌
belted up───安静些;系上安全带
welled log───测井曲线;钻井日志