Sec·chi depth 
(sĕkē)
(sĕkē)n.
A measure of the cloudiness or turbidity of surface water.
[After the SECCHI DISK.]
| 单词 | Secchi depth |
| 释义 | Sec·chi depth (sĕkē)n. A measure of the cloudiness or turbidity of surface water. [After the SECCHI DISK.] |
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