Instead, ministers want to see a big expansion in the amount of energy Britain gets from the waves, the sun and the wind-especially offshore wind.
相反，大臣们希望看到英国从潮汐、太阳能、风能(尤其是海风)中实现电量增长。
2
The existence of higher order mode waves in expansion mufflers is proved theoretically.
从理论上推导了扩张室消声器内可能存在的高次波。
3
According to the shock theory, the ejecta produced by explosion form the pressure pulse, and it spreads in forms of either compression waves or expansion waves.