C4 pathway A pathway of carbon fixation, found most commonly in tropical plants that have high rates of growth and photosynthesis and that are adapted to high temperatures, strong light, low carbon dioxide levels, and low water supply. Its importance lies mainly in its reduction of photorespiration.
PT 100 RTD means Resistance temperature detector(RTD) of platinum with 100 ohms resistance at zero degree centigrade.
The glues cure by RF ( radio freq.) and/or steam and need to reach the optimum temp to react properly. RTD is a way adding quality control to the process. The use of the in-process RTD sensors significantly reduced the delamination caused by insufficient heating of the plywood during the press cycle. If the plywood sheet is found to have delaminated areas, it is sold as a lower grade plywood at a reduced market value.