Health encyclopaedia - Alphabetical Topic List健康百科全书-按字母顺序排列的主题清单
| | A | | 1 | | | B | | b | | | C | | 人才招聘 | | | D | | | | | E | | 电子 | | | F | | f | | | G | | 克 | | | H | | h | | | I | | 我 | | | J | | j | | | K | | k | | | L | | 升 | | | M | | 米 | |
| | N | | n | | | O | | o | | | P | | p | | | Q | |常见问题 | | | R | | 研究 | | | S | | | | | T | | 吨 | | | U | | u | | | V | | v | | | W | | 瓦特 | | | X | | x | | | Y | | y | |
Hearing tests听力测验
Hearing tests are given as a routine part of child development checks, and to anyone who appears to have or to be developing a hearing impairment.听力测验，给出了作为一个例行的一部分，儿童发展的制衡，任何人谁似乎已经或将要制定一个听觉受损。
Hearing tests are painless.听力测验是无痛性。 They are sometimes called an audiogram or audiometry.他们有时被称为一个听力或听力。 They check how well you can hear different types of sound – soft and loud sounds, and sounds that are high and low in pitch.他们检查如何，以及你可以听到不同类型的声音â € “软和响亮的声音，及声音，是高与低，在球场。
Sounds are transmitted through sound waves in the air.听起来是通过声波在空气中。 As the waves go into the ear, they are sent to the nerves in the inner ear, and the nerves send messages to the brain.由于波进入耳朵，他们被送到神经在内耳的，和神经传送讯息到脑部。 It’s helpful to imagine sound as waves travelling towards a beach. itâ € ™ s有用的想象，声音波前往海滩。 The loudness of sounds is measured by how tall the waves are.响度的声音，是衡量有多高，海浪。 A very tall wave is a very loud sound.一个非常高的波是一个非常响亮声音。 The loudness of sounds is measured in decibels.响度的声音，是衡量在分贝。 The pitch or tone of a sound is measured in how close the waves are to each other.音高或音调一个健全的是如何来衡量关闭波向对方。 The closer together the waves, the more high pitched or squeaky the sound is, and this is measured in Hertz.紧密一起，海浪，更多高定或squeaky的声音，这是衡量在赫兹。
