Developer

(noun.) photographic equipment consisting of a chemical solution for developing film.

(noun.) someone who develops real estate (especially someone who prepares a site for residential or commercial use).

阿纳托尔校对

• Some chemical, the so-called developer, must be used to bring out the hidden change and to reveal the image to our unseeing eyes. 伯莎M.克拉克. 科学通论.
• In 1844 Hunt introduced the protosulphate of iron as a developer. Edward W. Byrn. 十九世纪发明进展.
• The practical introduction began about 1862 with the application of the alkaline developer. Edward W. Byrn. 十九世纪发明进展.
• When the plate has been in the developer for a few seconds, the silver coating gradually darkens, and slowly but surely the image printed by the sun's rays appears. 伯莎M.克拉克. 科学通论.
• There are many different developers in use, any one of which will effect the necessary transformation. 伯莎M.克拉克. 科学通论.

校对:鲁珀特