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In the production of a sound, if the air, onceout of the glottis, is allowed to pass freelythrough the resonators, the sound is a vowel
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Why use phonemic symbols? The alphabet which we use to write English has 26 letters but (British) English has 44 sounds. Inevitably, English spelling is not a reliable guide to pronunciation because Some letters have more than one sound Sometimes letters are not pronounced at all The same sound may be represented by different letters
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Chapter IIi Sound Forms- Morphology Language and Form 1 Form of sounds 2 Form patterns
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Chapter 13 &14 Wave Motion and Sound 1. Simple Harmonic Waves 2. Wave Equation 3. Energy and Power of Waves Interference of Waves Standing Waves 1. The Doppler Effect
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l、必音(Heart Sound) 第一心音(S1)第二必音(S2) 第三心音(S3)第四心音(S4)
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The importance of phonetic study 1) Phonetics is the science of speech sounds. It deals with the sound system of a language. A language consists of three important elements, namely, speech sounds, vocabulary and grammar. Speech
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声音(包括噪声)的形成,必须具备三个要素,首先要有产生振动的物体,即声源,其次 要有能够传播声波的媒介,最后还要有声的接受器,如人耳、传声器等。 一、声音的基本性质 声音(sound)是由物体振动产生的,而振动在弹性介质中的传播形式就是声波,处于一定 频率范围内(20~20000Hz)的声波作用于人耳就产生了声音的感觉
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Linking Vowel to Vowel If our lips are round at the end of the first word, we insert a / / sound: We write it like this: too often who is so I do all We say it like this: toowoften whowis sowI dowall
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On 29th March the BALTIC CARRIER, a double-hulled chemical tanker, collided with the TERN, a bulk carrier, off the Danish coast, spilling approximately 2700 tonnes of heavy fuel oil. The oil drifted north-westwards from the collision point and started coming ashore during the afternoon and evening of 29th March. The heaviest concentrations were along the south shores of Farøand Bogø in the sound between the islands of Falster
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上海交通大学:《物理实验》精品课程教学资源(讲义)8 Interference of Ultrasonic Sound Waves
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