penumbra是什麼意思 penumbra的用法 penumbra怎麼讀

penumbra

英 [pɪ'nʌmbrə]美 [pɪ'nʌmbrə]

n. 半影

星級詞彙:★

記憶方法

1、pen- + umbr- + -a.
2、含義：partial shadow outside the complete shadow of an eclipse.

中文詞源

penumbra 半影

來自拉丁語paene,幾乎，接近，umbra,陰影，全影，詞源同umbrella.

英語詞源

penumbra

penumbra: see umbrage

penumbra (n.)

1660s, from Modern Latin penumbra "partial shadow outside the complete shadow of an eclipse," coined 1604 by Kepler from Latin pæne "almost" + umbra "shadow" (see umbrage). Related: Penumbral.

權威例句

1. The First Amendment has a penumbra where privacy is protected from governmental intrusion.

第一修正案在個人隱私不受政府侵犯方面較爲模糊.

2. This includes the continuous survey of umbra and penumbra of the sunspot.

這包括對太陽黑子本影和半影持續的觀測.

3. A penumbra of doubt surrounds the incident.

疑惑的陰影籠罩着該事件((真相不明)).

4. In additional, the luminance step is applied to detect the penumbra.

另外, 提出了亮度步長的方法來檢測陰影中的半影.

來自互聯網

5. Traditionally, the word wangliang has three different meanings penumbra and elf.

“罔兩”一詞歷來向有“無據依”、“景外微陰”及“精怪”三義.

來自互聯網

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