一束光通过棱镜就会形成光谱。A spectrum is formed by a ray of light passing through a prism.这是一种原子光谱.This is a kind of atomic spectrum.天文学家们必须要从这些恒星上采集更多的光谱来证实他们的推想。Astronomers will have to collect more spectra from these stars to conf...
不要靠近那个变压器.Keep away from the transformer.变压器可在两个晶体管之间隔离直流 偏压.The transformer isolates the transistors with regard to d - c bias voltage .降压变压器 的匝数比小于1.A step - down transformer has a turns ratio less than 1....
There aren't many rape seeds left.下剩的油菜籽不多了....the boldness to pillage and rape.抢劫和强奸的胆子Rape or colza seeds, whether or not broken.油菜子, 不论是否破碎.This paper advances the preparation method of erucamide by direct ammono...