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- electric tube wrench 管子电动板手
- So, the electric tubes were predicted to extinct. 所以，电子管被认为将绝迹。
- About 20 or 30 years ago, the electric tubes were almost substituted by semi-conductor and almost eliminated. 20-30年以前，电子管基本上被晶体管所替代了，也基本上被淘汰了。
- In fact, many people then liked and now still like the beautiful sounds produced by the ampliers made of the electric tubes even if the objective technical specifications of the electric tubes are far worse than that of the circuts of semi-conductor. 事实上，很多人那时喜欢,现在也喜欢电子管放大器营造的靓声，尽管客观技术规格比晶体管差得太多了。
- Theoretically, all of the fuctions of the electric tubes can be substituted by those of semi-conductor and the objective technical specifications of the circuts of semi-conductor are far more better than that of the electric tubes. 理论上说，电子管的全部功能都可以被晶体管替代,而且，晶体管电路的客观技术规格比电子管的也优异得多了。
- It's quite clear that the electric car is technically feasible. 电动汽车明显在工艺技术上是可行的。
- Industry is a heavy user of electric power. 工业需耗费大量的电力。
- A tube or duct for enclosing electric wires or cable. 线管包裹电线或电缆的管子或沟道
- Never poke a finger or scissors into an electric socket. 千万不要把手指或剪刀插进电源插座。
- The machines are driven by electric motors. 这些机器都是由电动机驱动的。
- tube wrench 管子扳手
- She buy an electric toaster this morning. 今天上午她买了一个烤面包片的电炉。
- chain tube wrench 链条细管钳
- It's a conduit enclosing insulated electric wires. 这是包电线的导管。
- A lot of electric lamps illumined the stage. 舞台由许多电灯照亮。
- I did the letter on my electric typewriter. 我是用电动打字机打这封信的。
- He bought an electric hair-drier for Mary. 他给玛丽买了一个电吹风。
- Please turn off the electric power. 请把电源关掉。
- He bought an electric hair-dryer for Mary. 他给玛丽买了一个电吹风。
- Magnetism produced by electric charge in motion. 电磁性由运动电荷引起的磁性
