Assertion: bunsen burner's air hole | /r/HasProperty | closed
Facets:
value: fully
type: DEGREE
Source sentences:
text: When lit, but not in use, the air hole should be closed so that the flame is clearly visible: the hot, blue flame can be difficult to see under bright light.
text: When the air hole is closed it is a yellow sooty flame like the fires we have at home.
text: When the air hole is closed, there is not enough oxygen to mix with the natural gas, resulting in incomplete combustion.
text: The air hole is fully closed, so the gas can only mix with the air at the top of the barrel,
text: The air holes are now closed.
text: I think there are only 2 - the yellow flame when the air hole is closed and the blue flame when the air...