“projector”的概念、定义、翻译、参考文献-科学参考

单词	projector
释义	projector [prǝ`jek·tǝr] ^{ENGINEERING ACOUSTICS} 1. A horn designed to project sound chiefly in one direction from a loudspeaker. 2. An underwater acoustic transmitter. ^OPTICS See <<optical projection system>> ^ORDNANCE 1. Any apparatus for launching a projectile, such as a gun or rocket launcher. 2. Smooth-bore-type barrel or other unrifled weapon from which pyrotechnic signals, grenades, and certain mortar projectiles are fired. 3. A rack for launching target rockets. 4. Special type of gun for projecting antisubmarine projectiles.
随便看	graveyard shift gravid Gravigrada gravimeter gravimetric absorption method gravimetric analysis gravimetric geodesy gravimetry graving dock gravitation gravitational acceleration gravitational astronomy gravitational attraction gravitational bremsstrahlung gravitational clustering gravitational collapse gravitational constant gravitational convection gravitational displacement gravitational encounter gravitational energy gravitational equilibrium gravitational field gravitational-field theory gravitational flux density

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