It's available in both indoor and NEMA 3r-rated outdoor enclosures, able to resist elements such as rain, sleet and ice. And it can be mounted on either a wall or pedestal.
它既可在室内使用，又可在符合美国电气制造商协会3r标准的室外使用，能够防雨水、冰雹和冰等，可被安装在墙或底座上。
There's also a question of whether a chassis would be able to resist the elements and keep the mail dry.
还有一个底盘是否能防潮题。
There's also a question of whether a chassis would be able to resist the elements and keep the mail dry.
还有一个底盘是否能防潮题。
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