It’ll take about 30 minutes to dry but I’d allow a safety margin of, say, another 10 minutes.

【margin】要 30 分钟左右才能干，不过保险一点，再加 10 分钟吧。

It's based naturally on a depreciated figure for a clear safety margin." He closed his eyes in Mentat semitrance, said: " Under the Harkonnens, maintenance and salaries were held to fourteen per cent.

它自然是基于一个明确的安全边际的折旧数字。 ”他在 Mentat 半恍惚中闭上眼睛， 说：“在 Harkonnens 统治下， 维护和薪水被控制在 14%。