surveillance ship

基本解释

New ships, including a destroyer, a littoral combat ship and an ocean surveillance ship
新的艦船，包括一艘敺逐艦，一艘沿海戰鬭艦和一艘海洋偵察船。
On the incident of Impeccable, the US Navy surveillance ship, this time, I have already made China's view and position clearly. I have nothing more to add.
關於這次發生的美國海軍監測船“無瑕號”事件，我也清楚表明了中方的看法和立場，我沒有更多的補充。
USNS Impeccable (T-AGOS-23) is an Impeccable-class ocean surveillance ship acquired by the U.S. Navy in 2001 and assigned to the Navy’s Special Missions Program.
美國海軍完美無暇號（USNS Impeccable T-AGOS-23）是一艘2001年服役的，美國海軍的海洋探測船，隸屬於於美國海軍特別行動組。

But for unexplained reasons the two sides did not use it when Chinese boats harassed an American surveillance ship, the Impeccable, in the South China Sea in March.
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