外面的启动按钮位于独立安装的直柱顶端.The outside call buttons are located on top of individually installed poles.以前我们用直柱状活塞型人工镫骨作人工镫骨安装术,发现这种人工镫骨因经不起鼓室压力的较大变化而产生一些并发症,影响远期效果.Abstract Straight columnar piston type stapes prosthesis is comm...
The flowers give off a heady scent at night.这些花晚上散发出醉人的芳香.If plastic and rubber are burnt, they'll give off poisonous gases.要是塑料和橡胶被焚, 就会放出有毒的气体.Fireflies give off flashes of light when they fly at night.萤火虫夜间飞行时发出闪...