三心说 three stages of friendship: 友谊三步曲three stages of ore reserves: (黑色冶金)矿山三级矿量theory of the stages of economic growth: 经济成长阶段论volitional: adj. 意志的。 volitional power 意志力。 three stages fluidized bed dryer: 三层硫化床干燥器下载手机词典可随时随地查词查翻译