The average period of unemployment for these long -termunemployed is about 7 months.
长期失业者的平均失业期限大约是七个月。
The period of freak wave exceeds average period, but is shorter than the significant period.
畸形波的周期通常介于波列的平均周期与有效周期之间。
The period of freak wave exceeds average period, but is shorter than the significant period.
畸形波的周期通常介于波列的平均周期与有效周期之间。
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