* All matter, solid, gaseous or liquid, is made up of extremely tiny particles called molecules.
一切物質(zhì),不論是固態(tài)、氣態(tài)還是液態(tài)都是由極其微小的叫做分子的粒子所構(gòu)成的。
4. 當or連接句子時,可譯為“否則”,有時or后會出現(xiàn)else。如:
* Sufficient commutation time must be allowed for the thyristors, or commutation failure will occur.
必須給可控硅整流器充分的換流時間,否則會發(fā)生換流失敗。?
* The turns of wire must be insulated from each other and from the iron, or the current will flow through short-circuits instead of flowing around the coil.
各匝導線必須相互絕緣并與鐵芯絕緣,否則電流將短路,而不是圍繞線圈流動。
* The temperature must not exceed 650°C, or else the metal will melt.
溫度不能超過650°C,否則,此金屬會熔化。
5. 當or連接數(shù)字,表示不確定的數(shù)字概念時,可譯為“大約”、“左右”等。如:
* The particles require one or two days to reach the earth.
這些粒子大約需要ー兩天的時間才能到達地球。
* Lipoid A is reputed to contain only 40% or 50% of fatty acids.
據(jù)說類脂物A只含有大約40% — 50%的脂肪酸。
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