naturalfrequency 固有頻率naturalborn adj.生來(lái)的(天生的)natural-tinted fabric 天然本色織物natural-law generator 解析函數(shù)發(fā)生器natural-law function generator [計(jì)算機(jī)科學(xué)技術(shù)]自然律函數(shù)發(fā)生器natural-draft transformer [經(jīng)濟(jì)學(xué)]自然通風(fēng)式變壓器[機(jī)械工程]自然通風(fēng)變壓器natural-draft machine [土木建築工程]自然通風(fēng)電機(jī)natural-draft kiln [辳業(yè)科學(xué)]換氣乾燥室natural-draft drying [化學(xué)]自然通風(fēng)乾燥natural-draft drier [機(jī)械工程]自然通風(fēng)乾燥室natural-crime 自然犯natural-convection flow [物理學(xué)]自然對(duì)流natural-color television [物理學(xué)]天然彩色電眡[交通運(yùn)輸工程]天然彩色電眡natural-circulation operation [土木建築工程]自然循環(huán)運(yùn)行natural-cavity 天然洞natural-born (adj.) natural-born adj.天生的natural world museum natural world 自然界；物質(zhì)世界natural word-order [語(yǔ)言學(xué)]自然語(yǔ)序