英语词汇“variable-focus condenser”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	variable-focus condenser
释义	variable-focus condenser variable-focus condenser [′ver·ē·ə·bəl ¦fō·kəs kən′den·sər] (optics) A condenser that is used to obtain a large illuminated field area, and has two lenses, the first of which can be adjusted to bring light to a focus between the lenses.
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