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From rosin purified abietic acid was prepared by using abietic acid as stared material acylamino surfactant was synthesized by maleric anhydride and diethanolamine.

用松香纯化得到的松香()得马海松,再二乙醇胺制得松香马酰胺基乙醇表面活情剂.

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boatlift, boatload, boatman, boatmanship, boatnik, boatrace, boats, boatsteerer, boatstretcher, boatswain,

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3G, 401(K), a,

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