1.
This is an intriguing theory that droughts tie in with the sunspot.
这是一个关于干旱与太阳黑子活动周期有关的令人感到有趣的理论。
2.
Solar-like Activities in Late-type Stars: ( Ⅰ ): Starspots, Stellar Activity Cycles and Magnetic Field
晚型恒星中的类太阳活动(Ⅰ):恒星黑子、活动周和磁场
3.
A Study on Zhou Shumo s Internal Reforms and Diplomatic Activities in Heilongjiang Province;
周树模在黑龙江的内政改革与外交活动研究
4.
The "surface" of a black hole is the so-called event horizon, an imaginary surface surrounding the mass of the black hole.
黑洞“表面”就是所谓的活动视界，一个想像的黑洞质量周围的。
5.
THE RAPIDLY EMERGING OF THE SUNSPOT GROUP IN SESC 2372 REGION IN APRIL 1980
1980年4月2372活动区中黑子群的快速浮现
6.
A celebration commemorating such a date.
周年纪念活动为纪念这样的日子进行的纪念活动
7.
There is evidence that aspects of weather and climate are also synchronized with sunspot activity.
有数据表明，天气和气候的某些方面也随太阳黑子的活动而改变。
8.
The few night-flitting things-bats, moths, owls-were vigorous in the warm darkness.
少数夜游的动物——蝙蝠，蛾子，猫头鹰——在温暖的黑暗中非常活跃。
9.
(astronomy; of the sun) characterized by a high level activity in sunspots and flares and radio emissions.
（天文学；指太阳）以太阳黑子、耀斑和辐射的高等级活动为特点。
10.
A MORPHOLOGICAL STUDY OF A SOLAR ACTIVE REGION IN AUGUST 1972
1972年8月太阳活动区的形态研究 Ⅰ.黑子精细结构的形态
11.
SUNSPOT El NI N O AND TYPHOON ACTIVITY OVER THE NORTHWEST PACIFIC OCEAN
太阳黑子、厄尔尼诺及西北太平洋热带气旋的活动
12.
The celebration will run from next Monday.
庆祝活动从下周一开始。
13.
the cyclical nature of economic activity
经济活动的周期性质.
14.
The grayish outer part of a sunspot.
太阳黑子周围较浓的浅灰区
15.
sunspot theory of business cycle
经济周期太阳黑子影响论
16.
Do you think that we should have a party?
这组练习里的句子都跟周未的休闲活动有关系的，
17.
The celebration of such an anniversary.
周年大庆这种周年纪念的庆祝活动
18.
Business cycles are recurring cycles of economic events.
商业周期是经济活动重复发生的周期。