polar cap 中文意思是什麼
polar cap
解釋
【天文學】極冠。-
This year, shanshan ' s dad was a pilot on flights over the polar cap
今年，姍姍的爸爸成為了飛兩極冰帽的航班上的飛行員。 -
Zuber and her colleagues also analyzed mars ' s much larger northern polar cap
尤伯和她的同事也分析了火星上要大得多的北部極地冰冠。 -
The anomalous fac pair creates a transient dusk - dawn electric field over the polar cap, tailing behind the original region current and drifting towards the night side until it falls into oblivion
該異常場向電流對在極蓋區形成瞬間昏晨電場，尾隨原區電流向夜側方向漂移直至湮沒。 -
In the meantime, the new region current keeps increasing and expanding towards the night and equator side, and it eventually replaces the original region current, so the polar cap returns to a state as original with a dawn - dusk electric field
與此同時，新生的區電流不斷增強並向夜側和赤道方向延伸，最終取代原區電流，相應極蓋區又恢復到原來的晨昏電場狀態。 -
The abnormalities in the seasons and the weather, the rapid melting of the polar ice cap, the rising temperature of the oceans, the continuous expansion of the hole in the ozone layer, the acid rain given back to us by mother earth, sinking land masses and rising sea levels - what do all these reactions of the natural environment tell us that things turn for the worse when they reach the extreme seems not to be something which people take heed of
人類賴以生存的地球已是岌岌可危，生態環境在不斷的破壞下已產生了顯著的變化，四季氣溫異常北極冰巖急速溶化海水水溫高漲臭氧層的破洞繼續擴張大自然「還贈」給人們的酸雨陸地下陷海平面上升，這種種的自然界反應到底給了我們什麼啟示？物極必反的道理，似乎很難在人們心中起警惕的效應。 -
Steve and jack gave a talk about their trek across the polar ice cap. it was very interesting but it made my hair stand on end just to hear about the dangers they faced
史蒂夫和傑克講述了他們在極地冰蓋的一段艱苦跋涉，故事津津有味，只是聽到他們遇到種種險情時，我嚇得很。 -
At the beginning, the cytoplasm is evently distributed, then it is polar - distribution and at last it only remains between the apical cap and the sperm nucleus. during the period of spermatogonium, chromatin in the nucleus is in the shape of conglomeration and the nucleus is big ( i. e. the proportion of the nucleus to cytoplasm is bigger than spermatocyte ). at the stage of primary spermatocyte, chromatin accumulates to sc complexity. the nucleus of the mature sperm takes the shape of a plate and filmentous chromatins exist freely in uncondensed nucleus
精子發生過程中，細胞器由少到多，到最後解體；細胞質從均勻分佈，到精細胞期極性分佈，最後殘留于成熟精子的頂帽和精核之間；細胞核在精原細胞期，染色質異固縮，胞核大，即核質比大於后續的精母細胞；在初級精母細胞中，染色質凝聚為sc復合體，到成熟精子，精核呈碟狀，染色質呈絲狀游離于非濃縮的核中。 -
Phoenix will land in icy soils near the north polar permanent ice cap of mars and explore the history of the water in these soils and any associated rocks, while monitoring polar climate
鳳凰號將於2007年8月發射.這照片，飛船著陸后專門通過扇面圓形太陽能陣列獲得電力.這個可以使飛船工作得更久.鳳凰號將會在火星的北極地區著陸，在那裡探測是否有可以利用的水，和監測火星的極地氣候。 -
The air picks up moisture from the polar ice cap and bodies of water it may pass over.
空氣從它可能經過的北極冰帽和水域吸收水分。
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