有时这些碳棒包上一层铜,以增加其导电性.Sometimes the carbon rods are copper coated to improve electrical conductivity.它们在超导性和普通导电性的临界线上操作, 产生巨大的放大效果.Operating on the borderline of superconductivity and ordinary conductivity, they produce i...
He looked across at Jackson, doodling on his notebook.他一边朝杰克逊看过去，一边在自己的笔记本上乱涂乱画。Finally, unable to concentrate any longer, she fell to doodling on the writing pad.末后, 她不再去苦思索了, 机械地在那张信笺上画了无数的小圆圈.Such a group of city are ...