词汇	derricking mechanism
释义	derricking mechanism 变幅机构
随便看	index of hydrogen deficiency Index of identification index of image interpretation index of imertia index of immune organs index of immunity index of import and export index of import volume index of imprimitivity index of inconsistency index of individually planned bills of material index of industrial production index of industrial products retail prices index of industry and commerce formation index of inertia Index of infection index of integral velocity ei index of intellectual capital index of intensity growth Index of inventor and patentee index of inventors and patentees index of inventory sale index of inventory sale ratio index of inventory-sale ratio index of inventory-sales ratio