For instance, we squander about 30 percent of the energy in our homes. What's surprising is the amount of heat we lose through the area behind electrical outlet junction boxes.
例如,我们有大约30%的能量消耗在家里,通过电源插座线盒背部范围损失的热量高得惊人。
The full green boxes mean the memory pools are allocated in full when the database is started. Otherwise, only partial amount of memory is allocated.
完整的绿色方框意味着,在数据库启动的时候,该内存池是完全分配的,否则,就只分配部分的内存。
Using ultrasound waves, the pair beamed a small amount of power between two toaster-size boxes positioned a few feet apart.
两个烤箱般大小,相距几英尺摆放的盒子,能够利用超声波发出少量电能。
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