基本解釋[經(jīng)濟(jì)學(xué)]長(zhǎng)網(wǎng)單缸造紙機(jī)專(zhuān)業(yè)釋義經(jīng)濟(jì)學(xué)長(zhǎng)網(wǎng)單缸造紙機(jī)