| 摘要 |
<p>There is disclosed a receptacle adapted to hold a body of water and having indicator means for indicating when the volume of water held in the receptacle is equal to a volume i) in the range 688 to 757cm3, preferably 688 to 697cm3, most preferably about 689cm3, and/or ii) in the range 2752 to 3028cm3, preferably 2752 to 2786cm3 , most preferably about 2757cm3.</p> |
