基本解釋[生物學(xué)]營養(yǎng)層英漢例句雙語例句The anther is made up of an outer epidermis, a middle fibrous layer, and an inner nutritive layer, the tapetum.花藥壁由外表皮層，中間纖維層，內(nèi)部營養(yǎng)層和絨氈層構(gòu)成。nutritive layer更多例句專業(yè)釋義生物學(xué)營養(yǎng)層