这种新灯泡的耗电量还不到目前用于生产相同亮度的传统灯泡的一半。
The new bulbs require less than half the electricity consumed by the conventional bulbs currently used to produce the same amount of light.
根据我的经验，前例中的传统项目外观仍然是普遍的，是我们今天见到的一半以上项目的特征。
From my experience, the conventional profile in the illustration is still the norm and is characteristic of more than half the projects we see today.
另一半还是传统的石油。
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