“gravity conveyor”的概念、定义、翻译、参考文献-科学参考

单词	gravity conveyor
释义	gravity conveyor [`grav·ǝd·ē kǝn`vā·ǝr] ^ENGINEERING Any unpowered conveyor such as a gravity chute or a roller conveyor, which uses the force of gravity to move materials over a downward path.
随便看	soundproofing sound ranging sound-ray diagram sound reception sound recording sound reduction factor sound reflection coefficient sound-reinforcement system sound-reproducing system sound reproduction sound sensation sound signal sound spectrograph sound spectrum sound speed soundstripe sound system sound track sound transducer sound transmission sound transmission coefficient sound velocity sound volume velocity sound wave sound-wave photography

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