The 19 hydrogen stations that already exist in California use hydrogen made from natural gas, and that process is cheaper& about$ 3 a gallon equivalent. 而加州现在的19座加氢站则是从天然气中提炼氢的,这种工艺更便宜&大概是每加仑3美元。
Are the hydrogen bonding patterns between the strands of the jelly roll fold equivalent for all pairs of strands? If not, where do they differ? 是否所有成对的股与股之间的瑞士卷摺叠对等体的氢键分布皆相同?如果不是,它们的差异为何?
The results show that both YS-842B and its reference catalyst have the similar compositions and particle morpholog, and furthermore, their polymerization kinetic behaviors, sensitivities of hydrogen modulation and copolymerization performances are equivalent. 结果表明,YS-842B催化剂与国产同类催化剂的组成和颗粒形态相近;聚合动力学行为、氢凋敏感性、共聚合性能相当。
And the hydrogen attack resistance of Ti-B treated steel is better than that of Al-B treated steel where the B content is equivalent; 当B含量相当时.Ti-B处理钢的抗氢蚀性能优于Al-B处理钢;