trench drain

基本解释

We must dig a trench to drain away the water.
我们必须挖一条沟排水。
For example trench excavation for plumbing pipes are governed by the same rules of measurement as trench excavation for drain pipes.
为安装水管所进行的渠道开挖的工程量所用的计算规则条目，与为排水渠所开挖的工程量是相同的。
When placed in the drain of a lateral device or in the collector of a vertical device, the poly-filled trench effectively enlarges the drain or collector region, thereby lowering the ON-resistance.
当放置在横向器件的漏极或垂直器件的集电极中时，多晶填充的沟槽有效地放大了漏极或集电极区域，从而降低了导通电阻。
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