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- THE EARTH'S MAGNETIC FIELD AND GLOBAL GEOLOGIC PHENOMENA IN MID-CRETACEOUS 白堊紀中期地球磁場(chǎng)與全球地質(zhì)現象
- The magnetic field of the earth creates a torque around the pivot. 地球的磁場(chǎng)在支點(diǎn)周?chē)a(chǎn)生一個(gè)轉矩。
- Usually the earth's magnetic field acts as a shield. 平常，地球磁場(chǎng)構成了一個(gè)保護屏。
- The latest piece of the puzzle is superoxide, an oxygen molecule that may combine with light-sensitive proteins to form an in-eye compass, allowing birds to see Earth’s magnetic field. 最新的謎題是過(guò)氧化物，這是一種氧分子，它可以與一些光敏蛋白質(zhì)化合，在眼球中形成一個(gè)羅盤(pán)，讓鳥(niǎo)兒們可以看到地球的磁場(chǎng)。
- Pigeons navigate less accurately when the earth's magnetic field is disturbed. 地球磁場(chǎng)受到干擾時(shí)，鴿子的道航能力就會(huì )變得不準確。
- The earth's magnetic field protects us from the sun's harmful radiation. 地球磁場(chǎng)讓我們免受太陽(yáng)輻射的傷害。
- The Van Allen belts are composed of charged particles trapped by the earth's magnetic field. 范阿倫帶由地球磁場(chǎng)俘獲的帶電粒子所組成。
- The Earth's magnetic field is constantly changing,and the way,which it changes,also changes. 地球磁場(chǎng)總是在不停地變化，并且其變化的方式也在變化。
- If the sun were a rigid body, its magnetic field might resemble the earth's, with symmetrical field lines like a bar magnet's. 如果太陽(yáng)是一顆固體星球，其磁場(chǎng)或許與地球磁場(chǎng)相似，像條狀磁鐵那樣具有對稱(chēng)的磁力線(xiàn)。
- But after a period of time they reorient the dances to the earth's magnetic field. 但過(guò)了一段時(shí)間之后，它們的飛舞重新取向于地磁
- Either of two points where the lines of force of the Earth's magnetic field are vertical. 磁力線(xiàn)在地球表面是垂直的兩點(diǎn)之一。
- Geophysicists have long known that the source of the fluctuating magnetic field lies deep in the center of the earth. 地球物理學(xué)家很早就知道，地球磁場(chǎng)變化的原因深藏于地球中心。
- Our pilotless rocket enters the track of the earth. 我們把一個(gè)無(wú)人駕駛的火箭送入了地球的軌道里。
- The Earth's magnetic field is constantly changing, and the way, which it changes, also changes. 地球磁場(chǎng)總是在不停地變化，并且其變化的方式也在變化。
- We know from magnetic records locked in rocks that the earth's magnetic field has reversed many times in the past. 我們從鎖定在巖石中的磁記錄中知道，地球磁場(chǎng)在過(guò)去倒轉了很多次。
- The attraction of the moon for the earth causes the tides. 月球對地球的吸引力造成潮汐。
- An instrument used to determine the angle of the earth's magnetic field in respect to the horizontal plane. 磁傾儀用來(lái)測定地球磁場(chǎng)相對于水平面的角度的儀器
- The earth is only a speck in the universe. 地球在宇宙中只不過(guò)是一個(gè)小點(diǎn)罷了。
- An iron case will keep the Earths magnetic field away from the compass. 鐵箱能使地球磁場(chǎng)影響不了指南針。
- They can track the earths magnetic field as sensitively as a compass needle. 它們對地球磁場(chǎng)也十分敏感，如同使用了指南針。
