投影机 | tóu yǐng jī | projector | |
投影仪 | tóu yǐng yí | projector | |
水声换能器 | shuǐ shēng huàn néng qì | underwater sound projector / projector | |
幻灯机 | huàn dēng jī | slide projector / overhead projector | |
天象仪 | tiān xiàng yí | planetarium projector | |
磁照图发生器 | magnetic signature projector / magnetic signature duplicator / magnetic signature replicator | ||
高射投影机 | overhead projector |