21. This creates a force field which is concentrated into narrow tubes , and so the force does not diminish with distance. 22. A narrow tube is inserted into the subarachnoid space in the lumbar part of the back during a lumbar puncture. 23. An exception is if you had an extremely narrow tube , then it would permanent go higher, due to capillary action. 24. The capillary action refers to the tendency of water to move up a narrow tube against the force of gravity. 25. In fact, the team could find no centrifuge machines " deployed in a production environment " that used such narrow tubes . 26. The lateral line is described as having long, narrow tubes and from 75 to 77 standard length for the species is. 27. The trumpet-shaped flower corolla is roughly one to two centimeters long and has a very narrow tube and a wide mouth. 28. Bleeding ulcers can be effectively treated with an endoscope-- a long narrow tube inserted in the stomach to burn the ulcer. 29. It appeared as a narrow tube with an invisible core extending from the ground to the base of a growing thunderstorm. 30. While the powder is being released, oxygen is supplied into the furnace, and travels with the powder down a narrow tube .
