... bottom condenser 箱底冷凝器 bottom current meter 底层流速计 bottom die 底模 ...
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bottom current meter 底层流速计; 底流仪...
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bottom-mounted current meter 海底海流计
retrievable bottom-mounted current meter 可回收海底海流计
bottom current direction meter 底流方向仪 ; 底流方向计
bottom m current meter 底层流速计
retrievable E bottom-mounted current meter 可回收海底海流计
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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。
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