考察了聚异丁烯、氟化镧、三聚氰胺氰尿酸复合物（MCA）、硫代氨基甲酸盐对锂-钙基脂性能的影响。
The effects of polyisobutene , LaF3, MCA, dialkyldithioaminoformaite on properties of lithium-calcium base grease have been discussed in this paper.
目的改进对-胍基苯甲酸盐酸盐合成工艺。
OBJECTIVE To improve the synthetic process of 4-guanidinobenzoic acid.
目的改进对-胍基苯甲酸盐酸盐合成工艺。
OBJECTIVE To improve the synthetic process of 4-guanidinobenzoic acid.
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