It USES a thin stream of falling sand to measure time.
它使用一小股落下的沙子来计算时间。
Biochemical oxygen demand — the measure of the oxygen demand placed on a stream by any particular volume of effluent.
生化耗氧量——在由特定容量排放的小河中氧需求的测量。
Introduced a ratio method to measure the heat stream temperature with platinum resistor, the interface circuit is simplified and the precision for the flow measurement improved largely.
引入了一种基于比率法的铂电阻高精度测温方法，简化了接口电路，从而提高了热蒸汽密度和流量计量精度。
Carefully fill two sampling bottles completely with stream water. Use the dissolved oxygen meter to measure dissolved oxygen in the water.
小心地把两个取样瓶以溪水完全装满。以溶氧量计测量水中的溶解氧量。
A hoary old man upon a mow-white horse shall divert the River Periron, and above the stream he will measure out a mill with his white rod.
一位头发灰白的老人在干草堆之上——白色的马会转移到佩里安河，他会在溪水上端用白杆调节着磨坊。
A hoary old man upon a mow-white horse shall divert the River Periron, and above the stream he will measure out a mill with his white rod.
一位头发灰白的老人在干草堆之上——白色的马会转移到佩里安河，他会在溪水上端用白杆调节着磨坊。
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