Feedstocks may range from naphtha cuts to reducedcrude oils.
原料范围可从石脑油馏分到常压重油。
2
SEOUL—South Korea posted a much larger-than-expected trade surplus in February as ship deliveries boosted exports, while imports fell as holidays reducedcrude oil and natural gas demand.
首尔—— 二月，因为出口的增长和国内节日对原油和天然气需求的减少，韩国外贸盈余远远超过预期。
3
CONCLUSION: Crude realgar could induce significant liver oxidative injury, which could be reduced by purified realgar. Soluble arsenic salt may be major toxic ingredient.