Term 术语 Definition 定义
time: Greenwich civil
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See TIME: GREENWICH MEAN.
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time: Greenwich mean (GMT) (or Greenwich civil)
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MEAN SOLAR TIME at the GREENWICH MERIDIAN. See UNIVERSAL TIME (UT).
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time: local
地方时
TIME based upon the LOCAL MERIDIAN as reference, as contrasted with that based upon a ZONE MERIDIAN, or the MERIDIAN of Greenwich. Any TIME ... more
TIME based upon the LOCAL MERIDIAN as reference, as contrasted with that based upon a ZONE MERIDIAN, or the MERIDIAN of Greenwich. Any TIME kept locally.
以地方子午线为基准的时间,与以时区子午线或者格林尼治子午线为基准的时间不同。 当地任何时间点。
time: local apparent
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The APPARENT SOLAR TIME for the MERIDIAN of the observer.
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time: local mean
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The MEAN SOLAR TIME for the MERIDIAN of the observer.
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time: local sidereal
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The SIDEREAL TIME for the MERIDI­AN of the observer.
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time: mean
平时
See TIME: MEAN SOLAR.
参见mean solar time(平太阳时)。
time: mean solar
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TIME measured by the diurnal motion of the MEAN SUN, which is supposed to move uniformly in the CELESTIAL EQUATOR, completing the circuit in... more
TIME measured by the diurnal motion of the MEAN SUN, which is supposed to move uniformly in the CELESTIAL EQUATOR, completing the circuit in one TROPICAL YEAR. Often termed simply mean time.
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time: sidereal
恒星时
TIME measured by the apparent diurnal rotation of the (true) VERNAL EQUINOX. It is counted from 0 HOUR, when the VERNAL EQUINOX is on the ME... more
TIME measured by the apparent diurnal rotation of the (true) VERNAL EQUINOX. It is counted from 0 HOUR, when the VERNAL EQUINOX is on the MERIDI­AN, through 24 HOURS. Naming the MERIDIAN of reference is essential to its complete identification.
根据真春分点周日视运动测定的时间。当春分点在某点子午圈上中天,即零时,从零时起算,经过24小时,... more
根据真春分点周日视运动测定的时间。当春分点在某点子午圈上中天,即零时,从零时起算,经过24小时,又一次上中天。指定基准子午线是确定恒星时的关键所在。
time: solar
太阳时
TIME based upon the ROTATION of the EARTH relative to the SUN. See TIME: APPARENT SOLAR, TIME: ASTRONOMICAL, TIME: CIVIL, TIME: MEAN SOLAR.
以与太阳有关的地球自转为基准的时间。
time: standard
标准时
A variation of ZONE TIME adapted for use on or near LAND, with irregular but well-defined zone limits.
某地区及附近区域所采用的调整型区时,它虽不规则但有严格的时区界线。
time: summer
夏令时(间),日光节约时
See TIME: DAYLIGHT SAVING.
时区的调整型,通常比区时提前一小时。有时亦称summer time。
time: true solar
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See TIME: APPARENT SOLAR.
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Time: Universal
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See UNIVER­SAL TIME (UT).
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time: zone
时区
The LOCAL MEAN TIME of a reference or zone meridian, whose TIME is kept throughout a designated ZONE. The ZONE MERIDIAN is usually the neare... more
The LOCAL MEAN TIME of a reference or zone meridian, whose TIME is kept throughout a designated ZONE. The ZONE MERIDIAN is usually the nearest MERIDI­AN whose LONGITUDE is exactly divisible by 15°.
在整个时区内统一执行的以某一参考子午线或时区子午线为基准的地方平时。该时区子午线通常为时区中... more
在整个时区内统一执行的以某一参考子午线或时区子午线为基准的地方平时。该时区子午线通常为时区中线,其经度可被15°整除。
time ball
报时球
A visual TIME SIGNAL in the form of a ball.
一种球状的可视时间信号。
timepiece
计时仪
An instrument for measuring TIME. See CHRO­NO­METER, CLOCK, WATCH.
一种测时的仪器。
time signal
时号
See SIGNAL.
标定专用时间和时间间隔的精确信号,主要用于测定时计的误差。这种信号一般从天文台用无线电或电话... more
标定专用时间和时间间隔的精确信号,主要用于测定时计的误差。这种信号一般从天文台用无线电或电话传送,而在港口则用视觉信号。
time tag
时间标签
Reference assigned to each measurement input from a sensor to identify the time (either CPU, GPS, or UTC) when a measurement was actually ma... more
Reference assigned to each measurement input from a sensor to identify the time (either CPU, GPS, or UTC) when a measurement was actually made by that particular sensor; time tags allow adjustment of data from different sensors to a common time reference.
当测量由特定传感器实施,从传感器为每个测量输入分配的时间参考(无论是CPU,GPS或UTC);时间标签允许... more
当测量由特定传感器实施,从传感器为每个测量输入分配的时间参考(无论是CPU,GPS或UTC);时间标签允许将来自不同传感器的数据调整为一个共同的时间基准。
time zone
时区
See ZONE.
其所有部分的时间均相同的区。通常,各时区经度方向宽15°,并以格林尼治子午圈(0°经度)作为0区的中... more
其所有部分的时间均相同的区。通常,各时区经度方向宽15°,并以格林尼治子午圈(0°经度)作为0区的中央子午圈,其它各区则将每隔15°的子午圈作为中央子午圈。用时区可以将区时、标准时、夏令时联系起来。亦称time zone。