The DMA 4500 was built to measure round the clock. Its rugged design and minimum required lab space make it a welcome addition to any lab.是什么意思_The DMA 4500 was built to measure round the clock. Its rugged design and minimum required lab space make it a welcome addition to any lab.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句