方法：使用电热干燥箱作热源，用密度计测量胶片上各级灰阶的密度。
Methods: to employ an electrothermal drier as a heat source and measure density of grey scale in film with a densitometer.
赛场地面由一层有灰阶的哑光印刷纸覆盖。欲知当地厂商详情，请浏览官方网站。
The floor of the playing field is covered with a printed, matte greyscale. See your national web site for local suppliers.
新电子墨水技术使屏幕可以显示出16灰阶，比之前的4灰阶显示有了长足进步。
The e-ink technology powering its screen is also a newer generation, displaying sixteen shades of gray rather than four.
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