也许金属钠最重要的用途是作为还原剂生产高熔点金属，比如钛和铪。
Perhaps the most important use of sodium metal is as a reducing agent in producing high melting point metals, such as titanium and hafnium.
研究光、热、酸、碱、金属离子、氧化剂和还原剂对叶黄素酯和叶黄素稳定性的影响。
Stabilities of lutein and its esters against light, heat, acid, alkali, metal ions, oxidant and reductant were studied.
阐述了分别用金属氢化物、 甲醛作还原剂将9-芴甲醛还原为9-芴甲醇的工艺，并对工艺技术进行了评价。
The tow processes of reducing 9-fluorenylformaldehyde to 9-fluorenyl-methanol are studied by using metal hydride and formaldehyde. The evaluation of the technics is given at last.
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