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- Using ISD1420 series integrated phonetic circuit to produce sound and infrared diode on-off switch to simulate the beating process, a drum without drumhead is invented. 摘要应用ISD1420系列集成语音电路发音，红外光控器的通断对应鼓槌敲击，模拟鼓槌敲击鼓皮振动发声，制作了无皮鼓。
- drum without drumhead 无皮鼓
- Open wound of ear drum without complication 鼓膜开放性外伤不伴并发症
- It is hard to sleep without a cooler in this room. 没有空气调节器，在这间屋里很难入睡。
- Knowledge without common sense counts for little. 光有学问而无常识，则这种学问无甚价值。
- A buffer in a drum used to temporarily store data. 磁鼓中用来暂时存放数据的一种缓冲区。
- The beats of the drum were steady and slow. 鼓声平稳而缓慢。
- His old woman really beat the drum last night. 他的老婆昨晚着实太吵大嚷了一场。
- He acted wrongly and without scruple. 他做了错事毫不内疚。
- It is rash to cross the street without looking both ways. 不朝两边看看就穿马路是莽撞的。
- It is fun eating by stealth without being found. 偷吃而不被人发现很有趣。
- Let's try to drum up some more business. 让我们再努力招徕些生意。
- I just want an ordinary car without the frills. 我只要一辆没有多余装饰的普通汽车。
- A steel drum band gingered up the party. 一铁鼓队使晚会生动起来
- The salesman banged a drum to attract a crowd. 推销员击鼓以吸引人群。
- You cannot enter a military base without a permit. 无通行证者不得擅入军事基地。
- We can't go any farther without a rest. 不休息我们就走不动了。
- The drum majorette twirled her baton. 鼓乐队女队长快速地转动她的指挥棒。
- He can now ride his bike without stabilizers. 他现在骑自行车不需要平衡器了。
- He sloped off without being seen. 他人不知鬼不觉地溜走了。
