A sea current meter protective cap is characterized by being a drum-shaped cap, a cap wall is provided with two grooves, and the cap bottom is provided with two cone-shaped posts.
一种海流计保护帽，其特征是一圆桶形的帽，帽壁上开有两个槽，帽底有两根锥形的柱。
2
This invention discloses a kind of camera water meter recorder device with sealed drying cap.