基本解釋[生物學(xué)]營(yíng)養(yǎng)層英漢例句雙語(yǔ)例句The anther is made up of an outer epidermis, a middle fibrous layer, and an inner nutritive layer, the tapetum.花葯壁由外表皮層，中間纖維層，內(nèi)部營(yíng)養(yǎng)層和羢氈層搆成。nutritive layer更多例句專業(yè)釋義生物學(xué)營(yíng)養(yǎng)層