Is the most famous astronomer Ptolemy.最为著名的天文学家是托勒密.Ptolemy charted more than 1000 stars in 48 constella-tions.托勒密绘制了48个星座1,000多颗恒星的星位图。Ptolemy's model of the universe with the Earth at the center.托勒枚的以地球为中心的宇宙模型.Pt...
...tiresome schoolboy jokes.令人厌烦的愚蠢笑话These tiresome creatures eat holes in the leaves...这些讨厌的虫子在叶子上咬出了洞。He was tiresome in contending for the value of his own labors.他老为他自己劳动的价值而争强斗胜,令人生厌.He could forget, in a measure , ...
雷酸盐基本上不同于异氰酸盐和异氰三聚物的盐.The salts of fulminic acid differ basically isocyanic acid and its trimers.西兰花和西兰花芽中异硫氰酸盐的含量是最高的.Broccoli and broccoli sprouts have the highest amount of the isothiocyanates.尿中硫氰酸盐的吡啶-巴比妥酸分光光度测定方法.U...