您要查找的是不是：
- There are two breakers in this circuit. 这个电路里面使用了两个断路器。
- A replaceable printed circuit board. 一种可替换的印制电路板。
- seesaw circuit 跷跣板放大电路,板极输出器电路
- The circuit of the city walls is three miles. 环绕本市城墙的周长是三英里。
- Then the lead went seesaw between the two runners. 接着这两名运动员轮番领先。
- The seesaw battle is believed underway. 人们相信这种拉锯战正在进行中。
- There must be a break in the circuit. 电路中一定有断路。
- A short circuit will blow the fuse. 短路会烧断保险丝的。
- A short circuit put the machine out of action. 短路使机器停转。
- The most exciting one is a seesaw match. 最令人兴奋的是那种比分接近的比赛。
- Near the seesaw I saw a saw saw the wood into four. 在跷跷板附近，我看见一个锯子把那木头锯成四段。
- The switches close the contacts and complete the circuit. 这些开关可使接触器接通电流形成回路。
- The boy keeps the seesaw in balance. 这个男孩儿让跷跷板保持平衡。
- The children are playing at seesaw. 孩子们在玩跷跷板。
- Seesaw:What's today,Thursday or Friday? 跷板:今天是星期几,星期四还是星期五?
- Lily and Linda are sitting on the seesaw. 莉莉和琳达正坐在跷跷板上。
- A seesaw battle was believed under way. 据信正在进行拉锯战。
- Don't connect up the two wires, or there will be a short circuit. 不要把这两条电线接在一起，否则会短路的。
- The rocket did one circuit of the earth and returned to base. 火箭绕地球运行一周后返回基地。
