GbEng
沙漏；滴漏用于计时的仪器，由两个玻璃盒组成，中由一细颈相连，盒内装有一定量的沙子，水银或其他流动物质，这些物质在一固定量的时间里，通常为一个小时，从上方的盒内慢慢流入下方的盒子中 An instrument for measuring time, consisting of two glass chambers connected by a narrow neck and containing a quantity of sand, mercury, or another flowing substance that trickles from the upper chamber to the lower in a fixed amount of time, often one hour.
他按定量发水给水手们。 He rationed out the water to the sailors.
在干旱时期定量供应水 Rationing water during the drought.
她量出一定量的面粉、黄油和糖，开始拌做糕饼。 She measured out the flour, butter, and sugar and started to mix a cake.
牛肉糜压缩饼一种主要由牛肉、水果干和硬脂肪压制成的干肉饼，用作食物紧缺时的定量配给口粮 A food made chiefly from beef, dried fruit, and suet, used as emergency rations.