earth rotation rate造句

例句与造句

1. If the calendar is not amended, then Passover will start to land on or after the summer solstice around AM 16652 ( 12892 CE ) . ( The exact year when this will begin to occur depends on uncertainties in the future tidal slowing of the Earth rotation rate, and on the accuracy of predictions of precession and Earth axial tilt .)
2. At the International Astronomical Union ( IAU ) meeting in Dublin in 1955, he had proposed the system of distinguishing between variants of Universal Time, as UT0 ( UT as directly observed ), UT1 ( reduced to invariable meridian by correcting to remove effect of polar motion ) and UT2 ( further corrected to remove ( extrapolated ) seasonal variation in earth rotation rate ), a system which remains in some use today.
3. On 1 January 1972, GMT was superseded as the international civil time standard by Coordinated Universal Time, maintained by an ensemble of atomic clocks around the world . universal day; from 1 January 1956 ( as decided by the IAU at Dublin, 1955, at the initiative of William Markowitz ) this " raw " form of UT was re-labeled UT0 and effectively superseded by refined forms UT1 ( UT0 equalised for the effects of polar wandering ) and UT2 ( UT1 further equalised for annual seasonal variations in earth rotation rate ).
4. It's difficult to find earth rotation rate in a sentence. 用earth rotation rate造句挺难的