The satellite is powered by photovoltaic cells in two solar panels which provide 500 watts of electrical energy for the orbiting craft 衛(wèi)星是以裝在兩個(gè)太陽(yáng)能板上的伏打光電池為動(dòng)力,為環(huán)球飛行的航天器提供500瓦的電力。
Yet another alternative would be to fire ground - penetrating instruments at several places in the shadowed basin , either from a lander at the crater ' s rim or from an orbiting craft 而另一個(gè)可行的辦法,則是從停靠在隕石坑邊緣的登陸艇上或從空中的軌道船上,對(duì)數(shù)個(gè)不受日照的坑洞發(fā)射透地儀器。