指示码 meaning in English

indication code

4 - indicates that precipitation group is omitted
4 -不包括降水量组指示码
9 9 - indicator for sea station position groups
9 9 -船舶位置组指示码
0 - group indicator for sea surface temperature
0 -海面水温组指示码
4 - group indicator for period and height of the predominant swell
4 -主涌浪周期及高度组指示码
8 - group indicator for wet bulb temperature
8 -湿球温度组指示码

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