A bridge here, a power line there.
这儿有一座桥，那儿有一条电线。
Typical anticorrosion systems used on bridge, power-supplying steel tower and TV tower are given.
并列举了典型桥梁、输电钢塔、电视塔的防腐配套体系。
The theory of the half bridge switching mode power supply is introduced.
介绍了半桥型开关稳压电源的原理。
The theory of the half bridge switching mode power supply is introduced.
介绍了半桥型开关稳压电源的原理。
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