常見(jiàn)例句雙語(yǔ)例句Cloge detection system of pigging and extrusion tools is adopting very-low-frequency radiowave emission and reception.清琯及擠塗工具的阻卡探測(cè)系統(tǒng)是採(cǎi)用甚低頻無(wú)線電波發(fā)射、接收。 返回 very low frequency emission