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هيدروجين
n
environ.
氢
(易燃、无色的气体,且是最轻和宇宙中含量最丰富的元素,它主要存在于水和大部分的有机化合物中,且被使用于制造氨和其他化学物质、油和脂的氢化,和焊接中。)
هيدروجين:
9 phrases
in 4 subjects
Agriculture
2
Chemistry
1
Food industry
3
Pest control
3
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