英漢例句雙語(yǔ)例句The Bell X-5 gave NACA and Air Force researchers a chance to test out variable-sweep wings.在貝爾X - 5和空軍賦予的NACA研究人員一個(gè)機(jī)會(huì)來(lái)測(cè)試可變後掠翼。bell x-5更多例句