11. The emerging technology of magnetic resonance ( MR ) offers a more direct measurement . 12. The above discussion concerns the direct measurement of a quantity, which incidentally occurs rarely. 13. Four references have resulted in direct measurements of reaction rates. 14. No direct measurement to the tree's trunk or top is taken in the parallax Method. 15. These indirect measurements must be calibrated via a direct measurement , most commonly a McLeod gauge. 16. Direct measurements and data from TOPEX / Poseidon agree with each other in this area.17. To date, there have been no direct measurements of heat balance during in-flight exercise sessions. 18. Volume measurements can be achieved via tree climbers making direct measurements or through remote methods. 19. 0.1 mPa is the lowest direct measurement of pressure that is possible with current technology. 20. Only one direct measurement exists; the others are estimates.
