barrier-free market 無(wú)壁壘市場(chǎng)barrier-free 無(wú)障礙barrier-film 阻擋層barrier warrant [經(jīng)濟(jì)學(xué)]定界認(rèn)股證barrier unit 屏障單位barrier type ccd [電子、通信與自動(dòng)控制技術(shù)]勢(shì)壘型電荷耦合掐barrier treated carton board [材料科學(xué)]經(jīng)阻隔性處理的紙板barrier to migration [環(huán)境科學(xué)技術(shù)]遷徙障礙barrier to entry 進(jìn)入市場(chǎng)壁壘barrier thickness [醫(yī)藥科學(xué)]屏障厚度barrier system toll station [交通運(yùn)輸工程]柵梢制收費(fèi)站barrier system 屏障系統(tǒng)；柱式開采法；柵欄系統(tǒng)barrier strips barrier strip barrier spring [地球科學(xué)]堡壩泉堤泉barrier shielding 護(hù)柵欄barrier shield 屏蔽墻barrier resonant tunneling diode [經(jīng)濟(jì)學(xué)]雙勢(shì)壘諧振隧穿二極管barrier region 勢(shì)壘層barrier reef lagoon coast [地球科學(xué)]堡礁舄湖海岸