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- Two kinds of methods to add reverse magnetic field have been recommended, one is adding compensating Helmholtz coils, another is applying direct current to the rapid scan sweep coils of ESR spectrometer. 本文介紹兩種附加反向直流磁場(chǎng)的實(shí)驗方法;即外加補償的亥姆霍茲線(xiàn)圈;或直接借用ESR譜儀本身的快掃描線(xiàn)圈;來(lái)實(shí)現過(guò)零掃描.
- An indicator that the sun's magnetic field is reversing is the appearance of sunspots with the reverse magnetic polarity than normal. 太陽(yáng)磁場(chǎng)正在倒轉的一個(gè)指示，就是出現太陽(yáng)黑子發(fā)生磁極顛倒的現象。
- Our army suffered a slight reverse. 我們的部隊受到輕微的挫敗。
- Dalian is a magnet for tourists. 大連是吸引游客的地方。
- The 50p coin has a crowned lion on its reverse. 50便士硬幣反面的圖案是個(gè)戴皇冠的獅子。
- I twisted my head round to reverse the car. 我扭過(guò)頭去把汽車(chē)向後倒。
- The car has four forward gear and one reverse gear. 那汽車(chē)有四個(gè)前進(jìn)擋和一個(gè)倒擋。
- This disco is a magnet for young people. 這家迪斯科舞廳經(jīng)常吸引大批年輕的顧客。
- The reverse of the coin was stamped with an eagle. 硬幣的反面壓印的是一只鷹。
- She then looked at the reverse side of the coin. 接著(zhù)她看了看錢(qián)幣的反面。
- Children's shoes aren't cheap quite the reverse. 兒童的鞋并不便宜--反而更貴。
- A magnet attracts both iron and steel. 磁鐵吸鐵也吸鋼。
- Certain metals are attracted to a magnet. 某些金屬會(huì )受磁石的吸引。
- In the opposite way or reverse order. 正相反在方向或順序上的正好相反
- The superpowers are putting the arms race into reverse. 超級大國正在把軍備競賽轉換成相繼裁軍。
- Human beings have learned out how to make magnet of cast iron. 人類(lèi)已經(jīng)學(xué)會(huì )如何從生鐵制出磁鐵。
- Forbidden City is a great magnet for foreign tourists. 紫禁城對外國旅游者來(lái)說(shuō)是個(gè)有巨大吸引力的地方。
- The car has four forward gears and one reverse gear. 那汽車(chē)有四個(gè)前進(jìn)擋和一個(gè)倒擋。
- Only on rare occasions do the thermodynamics work; the fluid motions and the magnetic field all evolve in a compatible manner,so the new dipole polarity can diffuse in and establish a reversed magnetic field. 只有在很少的情況下熱力學(xué)才發(fā)揮作用，此時(shí)流體運動(dòng)和磁場(chǎng)都會(huì )以相互訪(fǎng)調的方式演化，這樣新的偶極性就會(huì )散開(kāi)并建立一個(gè)倒轉的磁場(chǎng)。
- Only on rare occasions do the thermodynamics work; the fluid motions and the magnetic field all evolve in a compatible manner, so the new dipole polarity can diffuse in and establish a reversed magnetic field. 只有在很少的情況下熱力學(xué)才發(fā)揮作用，此時(shí)流體運動(dòng)和磁場(chǎng)都會(huì )以相互訪(fǎng)調的方式演化，這樣新的偶極性就會(huì )散開(kāi)并建立一個(gè)倒轉的磁
