If you are taking liquid medicines, you should use a specially marked measuring spoon or other device to measure each dose accurately.
服用液体药品时应使用专用刻度药匙或其他量具正确测量每次剂量。
The wide-angle sky screen can be used for measuring the terminal velocity of the projectile, and providing synchronous signal for other trajectory measurement apparatus as the trigger device of the .
该装置可以用来测试弹丸末速，作为较大靶面的触发装置，为其他弹道测试仪器提供同步信号。
An instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display.
仪表，钟：除了时钟以外的测量或指示时间用的仪器，尤指一种有数字表盘、移动指针或数字显示的机械或电子仪器。
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