Solar is a variableenergy resource, providing electricity only when the sun is shining.
太阳能是一种可变的能源资源，只在当有阳光照耀的时候才能供电。
2
The idea is to oscillate the turbocharger's variable geometry and synchronise it with the engine exhaust to get better energy recovery from the pulsating exhaust flow.
这个创意是通过调节涡流增压器的结构来使它与引擎尾气排放同步，从而达到更好的能量回收效果。
3
So this is the variable that goes with Gibbs free energy.