單項(xiàng)選擇題

A microbarograph is a precision instrument that provides a（）.

A.charted record of atmospheric temperature over time
B.charted record of atmospheric pressure over time
C.graphic record of combustible gases measured in an atmosphere
D.graphic record of vapor pressure from a flammable/combustible liquid

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單項(xiàng)選擇題

A mercurial barometer at sea is subject to rapid variations in height (pumping) due to the pitch and roll of the vessel. To avoid this error，measurements of atmospheric pressure at sea are usually measured with a(n)（）.

A.syphon barometer
B.cistern barometer
C.aneroid barometer
D.fortin barometer

單項(xiàng)選擇題

A low，uniform layer of cloud resembling fog，but not resting on the ground，is called（）.

A.cumulus
B.nimbus
C.stratus
D.cirrus

A microbarograph is a precision instrument that provides a（）.

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A mercurial barometer at sea is subject to rapid variations in height (pumping) due to the pitch and roll of the vessel. To avoid this error，measurements of atmospheric pressure at sea are usually measured with a(n)（）.

A low，uniform layer of cloud resembling fog，but not resting on the ground，is called（）.

A mercurial barometer at sea is subject to rapid variations in height (pumping) due to the pitch and roll of the vessel. To avoid this error，measurements of atmospheric pressure at sea are usually measured with a(n)（）.

A low，uniform layer of cloud resembling fog，but not resting on the ground，is called（）.