Conversely, you might use a slow shutter speed to compensate for low light conditions-the longer the hole is open, the more light gets in, right?
反过来说，你可以用慢速快门来补偿暗光条件。
Rapid speed of aging results from low fertility; material preparation should be made ahead of time by taking advantage of current preferable population conditions.
老龄化速度快是低生育的结果，应充分利用“人口红利”为老龄化做好物质准备。
Due to such problems as bigger stepper Angle, and low speed vibration, the use of the stepper motor in high precision conditions is limited.
但是由于步进电机存在步距角较大及低速振动等问题，限制了它在高精度场合下的应用。
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