For this Sunshu is credited as China's first hydraulic engineer.
为此Sunshu记入我国第一液压工程师。
He is a famous ancient Chinese hydraulic engineer and mathematician.
郭守敬是中国古代著名的水利工程师和数学家。
By the way, where is the fourth engineer We'll have to test the hydraulic hatch cover with him.
顺便问一下，三管轮在哪儿？我们得一起去试一下液压舱盖。
By the way, where is the fourth engineer We'll have to test the hydraulic hatch cover with him.
顺便问一下，三管轮在哪儿？我们得一起去试一下液压舱盖。
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