在这一点上,在本人住的中央,水的供给充沛时,但即便是在凉快的和多雨的中央像英国,有些时分干旱和欠缺能够叫用水限制。
At this point, where I live, the water supply is plentiful, but even in cool and rainy places like England, there are times when droughts and shortages can call for water usage restrictions.
至少另有其它18个国家将有可能面临同样严重的水欠缺需要解答的题目。
At least 18more countries are expected to have severe water problems. The demand for water keeps increasing.
水铁矿结晶弱,结构表征困难,对其在环境中的分布、组成、结构及性质的认识较欠缺。
Ferrihydrite is poorly crystallized, which makes the determination of its structure more difficult. The distribution, composition, structure and nature are not yet very clear.
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