“obstruction”的概念、定义、翻译、参考文献-科学参考

单词	obstruction
释义	obstruction [ǝb`strǝk·shǝn] ^MEDICINE Occlusion or stenosis of hollow viscera, ducts, and vessels. ^NAVIGATION Anything that hinders or prevents movement, particularly anything that endangers or prevents passage of a vessel or aircraft; usually refers to an isolated danger to navigation, such as a submerged rock or pinnacle in the case of marine navigation, and a tower, tall building, mountain peak, and so forth, in the case of air navigation.
随便看	logarithmic multiplier logarithmic potential integrated profile integrated radiation integrated reflection integrated semiconductor integrated services digital network integrated software integrated thermionic circuit integrated train integrating accelerometer integrating amplifier integrating detector integrating factor integrating filter integrating frequency meter integrating galvanometer integrating gyroscope integrating ionization chamber integrating meter integrating network integrating-sphere photometer integrating water sampler integration integration by parts

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