The flexible diaphragm is connected to a plat cantilever - calibrated spring.柔韧的膜片一扁平的悬臂校正弹簧相连.Reflection of a beam of light on the diaphragm falls on a phototransistor.经膜片反射的光束照射到光敏管上.The diaphragm draws air into the lu...
My dad had to buy CDs of all the albums he already owned on vinyl.我爸爸就是要买他已有的所有黑胶唱片的CD版。Zip disks could be used to store the equivalent of three music CDs.压缩盘可以用来储存相当于3张音乐光碟容量的内容。Cassette recorders cannot rival the sound...
那时威尔士是个附庸国.Wales was a vassal kingdom at that time.协定的反对者认为货币联盟会使法国沦为德国的附庸国。Opponents of the treaty argue that monetary union will turn France into a vassal of Germany.可以空运部队到附庸国城市.You can now airlift into cities of your...
这些腺的中心分泌肾上腺素.The center of these glands manufactures adrenaline.直到不久以前,人们对胸腺的功能尚不明了.The function of the thymus was unknown until relatively recently.结论: 黄花倒水莲提取物能增加小鼠的体重和胸腺的重量.Conclusion: Polygala fallax Hemsl has effect...