（札幌）水工学に関する夏期研修会 Published on 9th November 202213th January 2026 by yasuda-t Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML When: 31st August 2023 – 1st September 2023 all-day Asia/Tokyo Timezone 2023-08-31T00:00:00+09:00 2023-09-02T00:00:00+09:00