water-cannon

基本解释

Anti-nuclear demonstrators stand in front of a water cannon during a protest outside a nuclear waste storage facility in Germany.
德国核废料存储工厂外举行抗议行游的反核主义者们。
Check out the dashboard and water-cannon control panels, featuring joysticks and a prominent "i-drive"-style controller knob mounted on the center console
机具的仪表板和水炮的控制面板、富有特色的操纵杆和安装在中控台上的一个凸起的"i-drive"自动驾驶风格的控制钮
Public broadcaster NHK reported that at least 12 water-cannon trucks would be brought in, so that forces could try to douse the reactor from the ground
NHK公众广播报道称，至少有12架高压水枪车驻扎进场地，以保证可以从地面对反应器注水。

Curfews, water-cannon and arrests have failed to prevent clashes from engulfing two northern towns.
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It took riot squads six hours to disperse the attackers, apparently because most of the troops exercised restraint: they relied largely on tear-gas, water cannon, shields and clubs, and shots fired in the air.
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A water cannon is a machine that shoots out a large, powerful stream of water. It is used by police to break up crowds of people who are protesting or fighting.