You don't need a waterproof outer layer, but it's good to have a significant degree of water resistance.

你并不需要密不透水的外套，但是它需要对水有一定的抗性。

youdao

Actuator design with fully sealed waterproof high degree of protection.

执行机构采用全密封防水设计防护等级高。

youdao

High-density foam solid silicon rubber sealing ring, high level of dustproof and waterproof, IP65, electrical insulation protection is 1 degree.

高密度发泡实心硅胶密封圈，防尘防水等级高，灯具防护等级IP65, 1级电气绝缘保。

youdao

The company's first waterproof camera also features a super wide-angle 170-degree rotating lens to let explorers record their adventures effortlessly.

ENGADGET: ContourRoam waterproof camera takes hands-free filmmaking underwater

The Back-Up Camera is both dustproof and waterproof to IP67 standard, and features a wide-angle viewing lens that provides a 120-degree viewing area behind the vehicle.

ENGADGET: Wireless Back-Up Camera for the Magellan RoadMate checks your six