Okay, the user wants me to translate "sluice-gate" into Simplified Chinese. Let me check if it's already in Simplified Chinese. The term "sluice-gate" is an English word, so it's not in Chinese. I need to find the correct translation.
First, I'll think about what a sluice-gate is. It's a structure used to control the flow of water, like in irrigation or flood control. In Chinese, the term for this might be "闸门" (zhá mén), which literally translates to "gate" but is commonly used for sluices. Alternatively, "水闸" (shuǐ zhá) specifically refers to a water gate or sluice.
I should confirm which term is more appropriate. "水闸" is more precise for a sluice-gate, as it directly mentions water. However, in some contexts, "闸门" might be used. But considering technical terms, "水闸" is the standard translation.
Wait, maybe the user wants the direct translation without any context. Let me check if there's a standard term. A quick search shows that "水闸" is the commonly accepted term for sluice-gate in engineering contexts. So the correct translation should be "水闸".