最高位置
Europe-Asia circulation position between middle and high latitudes, is two ridges-one trough, there is a low trough in the middle of Asia. The most severe successively heavy rainfall event in the summer 2004 was caused by upper-level trough on 15& 20 July.
亚欧中高纬环流形势为两脊一槽型,亚洲中部为一低压槽;夏季最强的一次降雨过程(7月15~20日)是高空低压槽前的持续性暴雨。
So far, though there have been increasing examples of inherently chiral calix [ 4] arenes with various substitution patterns ( upper and/ or lower rim, meta-position) and novel structures, most of them are cone and partial cone conformers.
至今已有大量上沿、下沿或间位取代的固有手性杯[4]芳烃被合成出来,但其中大部分都是锥形或部分锥形构象。
英语网 · 中考英语
英语网 · 双语娱乐资讯
英语网 · 英语口语
英语网 · 双语新闻