Each image is a 20-second exposure.
每张图片有20秒曝光时间。
The image below is a single 20-second exposure taken with a red-green-blue filter.
下图是用红-绿-蓝滤光片拍摄的单一20秒曝光照片。
Exposure to second-hand tobacco smoke is also dangerous.
接触二手烟草烟雾也是危险的。
There is no safe level of exposure to second-hand tobacco smoke.
关于二手烟草烟雾，不存在安全接触水平。
Regular exposure to second-hand smoke heightens the chance of a stroke by 50 per cent.
经常接触二手烟会增加50%患中风的机会。
Help protect non-smokers from exposure to second-hand tobacco smoke; and.
帮助保护非吸烟者避免接触二手烟草烟雾；以及。
The second point was maximization of the light and wind exposure.
第二点是光线的最大化和通透。
One normal exposure, the second underexposed and the third overexposed.
一张普通曝光，第二张低曝光和第三张高曝光。
An exposure of one-hundredth of a second will be enough.
曝光时间百分之一秒就够了。
Prolonged sun exposure can cause blistering, a second-degree burn.
长时期的曝晒会引起水泡，一种二度烧伤。
Prolonged sun exposure can cause blistering, a second-degree burn.
长时期的曝晒会引起水泡，一种二度烧伤。
应用推荐