静电计

Turn on the electrometer, select the coulombs function, then disable "Zero Check."

打开静电计，选择库仑功能，然后关闭&零点检查&。

If the source voltage is at least 10mV, the typical electrometer in the coulombs mode will integrate the current accurately.

如果源电压至少为10mV，那么工作在库仑模式的典型静电计能够准确地对电流进行积分。

However, for a femtoampere level of current, it may be better to use the coulombs function of an electrometer to measure the change in charge over time and then use those charge measurements to determine the current.

对飞安级电流，用静电计的库仑表功能测量整段时间的电荷变化量和用这些电荷测定电流更好。

Current from the source flows through the unknown resistance and the voltage drop is measured by the electrometer voltmeter.

电流源的电流流过未知电阻，并由静电计电压表测量其电压降。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。