This factor must precede an ice age and have the effect of slightly lowering Earth's temperature.
这一因素一定出现在冰川期之前，并有稍微降低地球温度的效果。
Earlier experiments had demonstrated this effect, but it was unclear whether the gas was doing this itself or was acting indirectly by lowering body temperature, which also reduces metabolism.
早期的实验证明了这种现象，但是并不明确是由于硫化氢本身所起的作用，还是因为其间接的降低了老鼠的体温，从而导致新陈代谢的减缓。
The central conditioner warehouse has the good effect of lowering temperature, low cost compared with the window conditioner-w...
采用中央空调制冷效果好，费用低，大大优于窗式空调。
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