direct view thermal image tube 直射視式熱攝像管
direct vision finder 直視取景器
direct vision prism 直視棱鏡
direct vision prisms 直視棱鏡
direct vision spectroscope 直視分光鏡
direct wave 直達(dá)波
direct-detection receiver 直探測(cè)接收機(jī)
direct-fire elbow telescope 指束射擊望遠(yuǎn)劊
direct-fire etelescope 指揮射擊望遠(yuǎn)鏡
direct-indirect transition 直接-間接躍遷
direct-positive photographic material 直接正攝材料
direct-radio spectrophotometer 正比分光光度計(jì)
direct-vision spectrograph 直視抏譜儀
directed beam 定向光束
directed ray 定向射線(xiàn)
directing point 基準(zhǔn)點(diǎn)
direction (1)方向(2)方位
direction cosine 方向余弦
direction finder (1)探向器(2)無(wú)線(xiàn)電羅盤(pán)中華考試網(wǎng)(www．Examw。com)
direction fluctuation 方向起伏
directiona diffuseness 定向漫射
directional antenna 定向天線(xiàn)
directional coupler 定向耦合器
directional emissivity 定向發(fā)射率
directional emittance 定向發(fā)射度
directional focusing 指向聚焦
direct vision finder 直視取景器
direct vision prism 直視棱鏡
direct vision prisms 直視棱鏡
direct vision spectroscope 直視分光鏡
direct wave 直達(dá)波
direct-detection receiver 直探測(cè)接收機(jī)
direct-fire elbow telescope 指束射擊望遠(yuǎn)劊
direct-fire etelescope 指揮射擊望遠(yuǎn)鏡
direct-indirect transition 直接-間接躍遷
direct-positive photographic material 直接正攝材料
direct-radio spectrophotometer 正比分光光度計(jì)
direct-vision spectrograph 直視抏譜儀
directed beam 定向光束
directed ray 定向射線(xiàn)
directing point 基準(zhǔn)點(diǎn)
direction (1)方向(2)方位
direction cosine 方向余弦
direction finder (1)探向器(2)無(wú)線(xiàn)電羅盤(pán)中華考試網(wǎng)(www．Examw。com)
direction fluctuation 方向起伏
directiona diffuseness 定向漫射
directional antenna 定向天線(xiàn)
directional coupler 定向耦合器
directional emissivity 定向發(fā)射率
directional emittance 定向發(fā)射度
directional focusing 指向聚焦