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Term 术语 Definition 定义
tripping device
解扣装置，释放装置
A device to pull equipment out of or to lower it into water.
将设备提出或放入水中的装置。
tripton
非生物性悬浮物
Collectively, all of the dead suspended parti­culate matter in aquatic habitats.
悬浮在水中的无生命碎屑。
trivet
（低）三脚架
A low support for a surveying instrument which is used where a TRIPOD cannot be used.
在不能使用三脚架的情况下所使用一种低脚架。
trochoidal wave
余摆线波
See WAVE.
一种行进振荡波，其形状为次摆线或摆线。可用许多小振幅波近似表示。
tropical cyclone
热带气旋
CYCLONE of tropical origin of small diameter (some hundreds of kilometers). It is charac­terized by violent WIND and torrential RAIN. Somet... more
CYCLONE of tropical origin of small diameter (some hundreds of kilometers). It is charac­terized by violent WIND and torrential RAIN. Sometimes accompanied by a THUNDERSTORM.
热带中一个半径较小的低气压区（约数百公里），伴有暴风、暴雨，有时还间有雷暴。
tropical month
分至月，回归月
See MONTH.
月球围绕地球相对于春分点公转的平均周期。分至月平均=27.321582个平太阳日。
tropical year
回归年，太阳年
See YEAR.
地球相对于春分点绕太阳公转一周的时间，由于春分点岁差运动，相对某星旋转角度并非360°，而要小50.3... more
地球相对于春分点绕太阳公转一周的时间，由于春分点岁差运动，相对某星旋转角度并非360°，而要小50.3″。回归年比恒星年短约20分钟，1900年平均为365天5小时48分46秒，年减少率为0.00530秒。亦称astronomical year（天体年）、equinoctial year（分至年）、natural year（自然年）、solar year（太阳年）。
tropic higher high water
回归高高潮
The HIGHER HIGH WATER of TROPIC TIDES.
回归潮的高高潮。
tropic higher low water
回归高低潮
The HIGHER LOW WATER of TROPIC TIDES.
回归潮的高低潮。
tropic high water inequality
回归高潮高差
See DIURNAL INEQUALITY.
在一个潮汐日内两次高潮或两次低潮的潮差。或两次涨潮或两次落潮的流速不等。回归潮平均日潮不等，... more
在一个潮汐日内两次高潮或两次低潮的潮差。或两次涨潮或两次落潮的流速不等。回归潮平均日潮不等，如指高潮则称为回归高潮不等；如指低潮则称为回归低潮不等。平均日潮高潮不等等于每个潮汐日两次高潮的潮差，统计19年平均值的一半。亦称declinational inequality。
tropic lower high water
回归低高潮
The LOWER HIGH WATER of TROPIC TIDES.
回归潮的低高潮。
tropic lower low water
回归低低潮
The LOWER LOW WATER of TROPIC TIDES.
回归潮的低低潮。
tropic low water inequality
回归低潮高差
See DIURNAL INEQUALITY.
在一个潮汐内中两次高潮或两次低潮的潮差。或两次涨潮或两次落潮的流速不等。回归潮平均日潮不等，... more
在一个潮汐内中两次高潮或两次低潮的潮差。或两次涨潮或两次落潮的流速不等。回归潮平均日潮不等，如指高潮则称为回归高潮不等；如指低潮则称为回归低潮不等。平均日潮高潮不等等于每个潮汐日两次高潮的潮高差，统计19年平均值的一半。亦称declinational inequality。
tropic of Cancer
北回归线
The northern PARALLEL OF DECLINA­TION, approximately 23°27' from the CELESTIAL EQUATOR, reached by the SUN at its maximum northerly DECLIN... more
The northern PARALLEL OF DECLINA­TION, approximately 23°27' from the CELESTIAL EQUATOR, reached by the SUN at its maximum northerly DECLINA­TION, or the corresponding PARALLEL on the EARTH.
北赤纬圈，距天球赤道约23°27′，是太阳向北所能直射到的最大赤纬或其在地球上对应的纬线圈。
tropic of Capricorn
南回归线
The southern PARALLEL OF DECLINA­TION, approximately 23°27' from the CELESTIAL EQUATOR, reached by the SUN at its maximum southerly DECLIN... more
The southern PARALLEL OF DECLINA­TION, approximately 23°27' from the CELESTIAL EQUATOR, reached by the SUN at its maximum southerly DECLINA­TION, or the corresponding PARALLEL on the EARTH.
南赤纬圈，距天球赤道约23°27′，是太阳向南所能直射到的最大赤纬或其在地球上对应的纬线圈。
tropic range
大回归潮差
Short for GREAT TROPIC RANGE.
great tropic range（回归大潮潮差）的简写。
tropics
热带
See TORRID ZONE.
地球上介于北回归线和南回归线之间的地区。亦称tropics（热带）。
tropic tide
回归潮
See TIDE.
当月亮在赤道南部或北部赤纬最大时每月发生两次的潮汐。
tropopause
对流层顶
Upper limit of the TROPOSPHERE.
对流层的上限。
troposphere
对流层
Lower part of the terrestrial ATMOSPHERE, extending from the surface up to a HEIGHT varying from about 9 km at the POLES to about 17 km at t... more
Lower part of the terrestrial ATMOSPHERE, extending from the surface up to a HEIGHT varying from about 9 km at the POLES to about 17 km at the EQUATOR, in which temperature de­creases fairly regularly with HEIGHT. From an analogy with the ATMOSPHERE, the term is sometimes applied in OCEANOG­RAPHY to the upper ocean layer of relatively high temperature that is found in middle and lower LATITUDES and within which strong CURRENTS are present. See STRATOSPHERE.
地球大气层的下半部分，即从地表到某一高度的空间，该高度从极地上空9公里到赤道上空17公里不等，在... more
地球大气层的下半部分，即从地表到某一高度的空间，该高度从极地上空9公里到赤道上空17公里不等，在这一空间，温度随着高度的增加而有规律地下降。与在大气层中的情况类似，该术语有时在海洋学中表示在中低纬度发现的、有急流存在的较高温度大洋层的上部分。