gas back-up 中文意思是什麼

gas back-up 解釋
氣體保護
  • gas : n （pl gases ）1 氣，氣體，氣態 〈cf fluid; solid〉 2 可燃氣，煤氣，沼氣；【礦物】瓦斯。3 【軍事...
  • back : n 1 背，背部；背脊；背面，反面；背後，後部，後面，裏面。2 （指）甲；（刀）背；（手）背；（書）背...
  • up : adv （superl uppermost ）1 向[在]上，向[在]上面；向[在]被認為處于上方的地方或方面〈如河流的源頭，...
  1. I was just a young boy and i remember my father pulling into gas station where he filled up the car. as we were driving away, all of a sudden we hear this clink, clink, clink off the back of the car. immediately my dad said, " oh my goodness

    我年少的時候，那時我還未懂得駕車，有一次爸爸和我到油站入油，我們入好了油離開，忽然間，我們聽見車后，有些金屬碰撞的聲響，我爸爸說：天啊！
  2. Tokyo gas, the utility whose land it was, is removing 2m ( 6. 6 feet ) of topsoil, and 2. 5m of fresh soil is going on top, but environmentalists say that an earthquake or a tidal surge would bring the benzene straight back up to the surface again

    東京燃氣因此將深達兩米（ 6 . 6英尺）土壤表面挖掉，填回了2 . 5米的新土，但是環保人士稱地震或潮汐仍將把苯毒再次翻上來。
  3. Nowadays, swirling burners have been used widely, because they can establish central recirculation bubbles which make high temperature gas flow back so as to speed up the progress of combustion of pulverized coal

    旋流燃燒器因為能夠形成中心迴流區，卷吸高溫煙氣，促進煤粉的著火等特點，在工程上已經得到了廣泛的應用。
  4. Moreover, because of reasons of natural conditions, fund, and technology, it will be in far future to explore and develop in full scale the very prospective russian arctic sea region, where is the last back - up oil and gas resources in the world

    另外，由於自然條件和資金、技術方面的原因，對世界上最後的石油天然氣后備資源極具遠景的俄羅斯北極海域的全面勘探開發為時尚早。
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