The pressure on his ear-drums was a pain, and there was a buzzing in his head.
耳膜上的压力使他疼痛，头也嗡嗡地响了起来。
The control cable system must be displaced full travel in each direction for complete inspection at fairleads, air pressure seals, grommets, quadrants, drums, and over pulleys.
控制用线缆系统在全套检查的时候，导缆器，气压密封件，金属扣眼，象限仪，鼓，和滑轮等处，都应该在每个方向都进行偏转到头的移位测试。
He knew that he was deep. The pressure on his ear-drums was a pain, and there was a buzzing in his head.
他知道已经很深了，他的耳鼓膜剧烈疼痛着，脑子嗡嗡作响。
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