英语词汇speculum mirror的翻译、用法及例句-MX2U.com英汉词典

speculum mirror

noun [ C ] uk/ˈspek.jə.ləm ˌmɪr.ər/ us/ˈspek.jə.ləm ˌmɪr.ɚ/

（旧时望远镜中所使用的）铜锡合金反射镜

a type of mirror made from speculum metal (= a mixture of copper and tin) that was used in old telescopes (= devices for looking at stars and other things that are far away)

The Melbourne reflector was the last major telescope to be equipped with a speculum mirror. 墨尔本反射镜是最后一个装有铜锡合金反射镜的大型望远镜。

A speculum mirror will bend three times as much as a glass one because it will be three times as heavy.
The largest ever speculum-mirror-based telescope was built by William Parsons.
The radius of curvature of the speculum mirror was 6.55 metres.
Lassell's 47-inch reflector, made in 1860, was the last large reflector with a speculum mirror.

词汇	speculum mirror
释义	speculum mirror noun [ C ] uk/ˈspek.jə.ləm ˌmɪr.ər/ us/ˈspek.jə.ləm ˌmɪr.ɚ/ （旧时望远镜中所使用的）铜锡合金反射镜 a type of mirror made from speculum metal (= a mixture of copper and tin) that was used in old telescopes (= devices for looking at stars and other things that are far away) The Melbourne reflector was the last major telescope to be equipped with a speculum mirror. 墨尔本反射镜是最后一个装有铜锡合金反射镜的大型望远镜。更多例句 A speculum mirror will bend three times as much as a glass one because it will be three times as heavy. The largest ever speculum-mirror-based telescope was built by William Parsons. The radius of curvature of the speculum mirror was 6.55 metres. Lassell's 47-inch reflector, made in 1860, was the last large reflector with a speculum mirror.
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