step-up transmission的意思|示意

The next step, he says, is to make HEG break up not the fluorescent protein gene but one that is crucial for malaria transmission.

他说，下一步是制造一个不在荧光蛋白基因位置断裂而是对疟原虫传播起关键作用的基因。

A step-up transmission substation receives electric power from a nearby generating facility and uses a large power transformer to increase the voltage for transmission to distant locations.

译文为：升压变电站从附近的发电设施接收电力，然后使用大型变压器将电压升高，远距离输送电力。