There are 22 R&D improvement projects, which have a cumulative impact of 2199 points on PTU. 10 closed issues contribute 777 points to PTU. After the remaining issues are closed, PTU will contribute 1421 points;
22 R & D improvement projects have a cumulative impact on PTU of 2199 points, 10 closed issues have 777 points of contribution to PTU, and the remaining issues will also generate 1421 points of contribution to PTU;<br>