Plumbago
[plʌm'beigәu]
解釋/意思:
(n.) Same as Graphite.
(n.) A genus of herbaceous plants with pretty salver-shaped corollas, usually blue or violet; leadwort.
吉尔手打
同義詞及近義詞：
n. Black-lead, graphite.
尤因整理
解釋/意思:
n. a mineral composed of carbon iron and other materials used for pencils &c. popularly called 'blacklead:' graphite: a genus of plants with blue or violet flowers.—adj. Plumbag′inous.
巴拉克編輯
例句/造句/用法:
- It consists of a series of silk disks saturated with a sizing of plumbago and well dried. 弗蘭克·路易斯·戴爾. 愛迪生的生平和發明.
- The poles of the electromagnet in the local circuit are hollowed out and filled up with carbon disks or powdered plumbago. 弗蘭克·路易斯·戴爾. 愛迪生的生平和發明.
- In 1840 Murray used plumbago to make non-conducting surfaces conductive for electro-plating. Edward W. Byrn. 十九世紀發明進展.
伊妮德編輯