首次看到气体星球的核心 The planetary core orbits very close to its parent star 行星核心的轨道非常接近其母恒星 Astronomers have found a previously unseen type of object circling a distant star. 天文学家发现了一种以前看不见的围绕着一颗遥远恒星的天体。 It could be the core of a gas world like Jupiter, offering an unprecedented glimpse inside one of these ……Read More
标签： Translation
Lesson2 Part1
Types and Application of coal Coal is a fossil fuel formed in swamp ecosystems where plant remains were saved by water and mud from oxidization and biodegradation. 煤是沼泽生态系统中形成的化石燃料，在沼泽生态系统中，植物残骸在水和泥浆的氧化和生物降解作用中被保存下来。 Coal is a readily combustible black or brownish-black rock. It is a sedimentary roc……Read More
A ‘mass experiment’ for the climate
气候的大规模试验 Has the pandemic helped individuals and leaders get any closer to tackling the environmental crisis? 大流行是否帮助个人和领导者进一步解决环境危机？ “I was so worried about the dangers of going too far,” says Sally Capp, Lord Mayor of Melbourne, when she now thinks about her pre-pandemic leadership on the environm……Read More
Lesson1 Part2
Ores are also classified by the nature of their gangues, such as calcareous or basic (lime rich), or siliceous, or acidic (silica rich). 矿石还根据脉石的性质进行分类，例如钙质或碱性（富含石灰），硅质或酸性（富含二氧化硅）。 The minimum metal content required for a deposit to qualify as an ore varies from metal to metal. 矿床符合矿石的最低金属含量因金属而异。 M……Read More
Nasa’s 2020 rover: Can we finally answer the big question about Mars?
美国国家航空航天局（NASA）火星探测车：我们终于可以回答有关火星的大问题了吗？ Nasa Perseverance Mars rover Exactly a year from now, a capsule will come hurtling through the atmosphere of Mars with the Americans’ next big rover. If it survives the “seven minutes of terror” that describe its descent to the surface, the ……Read More
Lesson1 Part1
Metallic Ores An ore can be described briefly as an accumulation of mineral in sufficient quantity as to be capable of economic extraction. 一个矿石可以简单地描述为一个足够数量的、能够经济开采的矿藏。 This establishes the market price of the metal as a critical criterion in the definition, and this will vary according to the com……Read More