光線用棱鏡 、 光柵或干涉儀分解.The light is resolved by prisms, gratings, or by an interferometer.邁克耳孫和莫雷使用一臺邁克耳孫發明的干涉儀.An interferometer invented by Michelson was used by Michelson and Morely.不很精確的射電干涉儀觀測表明,這個源的角徑約為1.5弧秒.Comparativel...
The soldiers were at drill in the barrack - yard .士兵們在兵營 練兵場 操練.The battalion formed up by companies on the barrack square.這個營在營地廣場上排成以連為單位的隊列.Platoon sergeants fell their men in on the barrack square.排長們在營房廣場上整頓隊伍.Group...
Jig plates can be divided into fixed , hinged demountable and swing types.常見的鉆模板有固定式、鉸鏈式、可卸式 、 懸掛式等四種結構形式.DEMOUNTABLE FRONT BUMPER, impact resistant 6 mm steel plate.可拆卸的前保險杠:耐6毫米鋼板的沖擊.It a truly demountable modular part...