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planet n.1.【天文學】行星 (opp. fixed star...

planet struck

We were wanderers on a prehistoric earth, on an earth that wore the aspect of an unknown planet . 我們似乎是在史前大地上漫游,在外貌象一個完全陌生的行星的大地上漫游。

Science seems ready to confer upon us, as its final gift, the power to erase human life from this planet . 科學似乎好象準備賜給我們最后一個禮物--消滅全人類的力量。

The net radiation budget of the entire planet and of each hemisphere separately, is in radiative balance . 整個行星以及兩個半球各自的凈輻射收支處于輻射平衡。

First, we know that the planets all orbit close to the earth's orbital plane, the ecliptic . 首先,我們知道所有行星的軌道都很靠近地球的軌道平面黃道面。

The sun and moon, stars and planets sweep daily from the eastern horizon to the western horizon . 太陽和月亮、恒星和行星每天從東方地平線向西方地平線掠過。

In other cases, evidence leads to the conclusion that planets must be causing the wobble . 在另一些情況下,由這些證據可得出行星必定要引起擺動的結論。

He collected facts that proved the earth and all the other planets move around the sun . 他積累了很多論據,證明地球和所有別的行星都是繞太陽旋轉的。

Spaceships must attain tremendous speeds to reach these planets in a reasonable time . 宇宙飛船必須獲得極大的速度才能在一定的時間里抵達這些行星。

The telescopes and spacecraft of today have cleared up many of the mysteries of the planets . 今日之望遠鏡和宇宙飛船已消除了行星的許多神秘之處。

Every inhabitant of this planet must contemplate that it may no longer be habitable . 世界上每個人都必須思考到地球上可能不再適合人住的那一天。

It is believed that some of them are, like our sun, circled by a number of planets . 人們認為:它們有一些象我們的太陽一樣,被許多行星所環繞。

Some planets may be carrying intelligent beings, perhaps more advanced than we are . 有些行星上可能載著有智慧的生命,說不定比我們更高級呢。

The oceans are accordingly a major factor in shaping the environment of life on this planet . 因此海洋是造成這個行星上生活環境的主要因素。

Man's great challenge at this moment is to prevent his exodus from this planet . 人在當前所遇到的最大挑戰,就是要防止人從這個星球上消失。

Each planet traces an orbit around the sun as if no other planets were present . 每一個行星繞著太陽作軌道運行,就像不存在其它行星那樣。

Our spinning planet is heated strongly at the equator, feebly at the poles . 我們這個旋轉著的行星在赤道處受熱很強烈,而在兩極很微弱。

By comparison the navy was a queer little planet whirling in an austere void . 相比之下,海軍像一顆在嚴峻的太空中旋轉的怪誕的小行星。

We know that the universe is filled with stars and suns and planets and systems . 我們知道宇宙充滿了各種恒星、行星、各種星座、星系。

Let us suppose another planet with conditions similar to those on the earth . 讓我們假定另外有一個具有和地球上相似條件的行星。