BEGIN:VCALENDAR VERSION:2.0 PRODID:-//hacksw/handcal//NONSGML v1.0//EN TZ:+00 BEGIN:VEVENT DTSTART:20210730T000000Z DTEND:20210730T000000Z SUMMARY:2021 the 3rd International Conference on Water Resources and Environmental Engineering (ICWREE2021): Oral abstract deadline due before 30th July 2021 LOCATION:HongKong,HongKong,China END:VEVENT END:VCALENDAR