Odoo 9.0 - en to mn translation catalogue (4 entries)

note: module: website_project_issue_sheet
en: Date
mn: Огноо

note: module: website_project_issue_sheet
en: Description
mn: Тодорхойлолт

note: module: website_project_issue_sheet
en: Duration
mn: Үргэлжлэх хугацаа

note: module: website_project_issue_sheet
en: Responsible
mn: Хариуцлага
