Sigman测量海藻所需的氮气量用于解释(他的学说)，他还能精确计量这些古老的植物需要的另外一种重要元素——二氧化碳。
Sigman explained that by measuring algae's use of nitrogen, he can gauge how much these ancient organisms used another important element - carbon dioxide, or CO2.
“干球温度”是更为常见的空气温度计量法，它同“湿球温度”一起，能够用来测量湿度。
The more familiar air temperature is known as the "dry-bulb" temperature; wet bulb temperatures can be used along with the dry bulb temperature to calculate humidity.
对于小计量的传感器，应该避免它受到冲击，这会影响到它今后测量值的准确性。
For small measurement sensor, it should be avoided under attack, this will affect its future measurement accuracy.
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