The present invention concerns a process for ex situ oxidizing passivation of hydrocarbon hydroconversion catalysts, in particular for hydrotreatment in their sulphurized states, in which the sulphurized catalyst undergoes two treatments: contact with an oxidizing gas stream, and contact with an organic liquid which partially fills its pores. Another embodiment is a curing agent for an epoxy resin system comprising at least one non-acid functional rosin moiety and at least one moiety that is reactive with an epoxy. The present invention separates two antagonistic bacteria NJN-6 and NJN-11 and produces the microbial organic fertilizer through inoculating the two said strains into pig manure compost and rapeseed cake compost to conduct solid-state fermentation. A pipe is inserted in the center hole of the crankshaft to form an oil passage for supplying hydraulic oil for driving the torque converter, an oil passage returned from the torque converter, and an oil passage for supplying a lubricating oil to the area surrounding the crankshaft. A forward multistage transmission can be obtained by engagement operations of the friction engagement devices. A plurality of concepts are presented in the first section and a plurality of concepts are presented in the second section that relate to the subject matter of the first section.