确保调色工作液可以完全覆盖住照片，一般3升调色液可以覆盖12x16寸的显影盘。
Make sure that there is enough solution in the tray to keep the print covered, minimum of 3 litres of working solution for a 12 x 16 tray.
配好的工作液在满瓶且瓶盖紧闭的情况下可以保存6个月、半瓶可以保存1个月，放在显影盘内的工作液可以保存7天。
Working strength solutions will normally last for up to 6 months in full, tightly capped bottles, 1 month in half tightly capped bottles, and up to 7 days in an open tray.
配好的工作液在满瓶且瓶盖紧闭的情况下可以保存6个月、半瓶可以保存1个月，放在显影盘内的工作液可以保存7天。
Working strength solutions will normally last for up to 6 months in full, tightly capped bottles, 1 month in half tightly capped bottles, and up to 7 days in an open tray.
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