Because you need both a voltage source and a ground in order to create a complete circuit, you need to have a sourcing input or output connected to a sinking output or input.
因为在一个完整的电路中必须有一对电源和地。
The sinking digital output controls the line by using a transistor to leave the line high (at + v) or to ground the line to 0 v.
Sinking数字输出通过三极管来控制连接线上的电平为高电平(+V)或是低电平(0 V)。
Since the 20th century, when Wells began to draw water from the ground to support local industry, Venice has been sinking.
从20世纪自地底抽取井水以支持当地工业开始，威尼斯就开始下沉。
We managed to get on from behind and it was not sinking into the ground like the ARMA birds do.
我们设法跟上它们，透明没有沉没到地上，就像ARMA的鸟一样。
This does not appear to be sinking, but ground movement.
这看起来可不像下沉，而是地层移动。
Fixed a bug that causes Green Slimes to get stuck in the ground and start sinking.
修正了一个错误，导致绿泥卡住在地上，并开始下沉。
Fixed a bug that causes Green Slimes to get stuck in the ground and start sinking.
修正了一个错误，导致绿泥卡住在地上，并开始下沉。
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