And as it turns out, the biggest factor affecting prehistoric temperature shifts has been fluctuating levels of carbon dioxide in the air.
而结果是，影响史前气温转变的最大因素一直是空气中二氧化碳含量的摆动。
In spring the air temperature rises in a fluctuating way and mulberry grows by stages.
春季气温呈波状形上升，桑树生长也表现为阶段累积生长。
Adopted no-drop, no-splash, no-bubble filling, PID temperature control and fluctuating sealing, computer control, frequency conversion for speed adjusting and other technique.
采用了无滴无溅无泡灌装、PID温控和浮动封口、电脑控制、变频调速等技术。
Adopted no-drop, no-splash, no-bubble filling, PID temperature control and fluctuating sealing, computer control, frequency conversion for speed adjusting and other technique.
采用了无滴无溅无泡灌装、PID温控和浮动封口、电脑控制、变频调速等技术。
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