...df pc 通径的选择 见上页“选择接头通径” 线圈式8030 只能配电池供电的8025 t型变送器 不需电源 (field mounting with battery) can be opera接头和se30型电子模块两部分。
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牺牲阳极法阴极保护因其不需电源、管理简单、电流分布均匀，特别是对于形状特殊的构筑物。
The sacrificial anode cathodic protection features no power source, simple management and even current distribution. It is well received especially on special shaped structure.
混合动力汽车，不像纯电动汽车，从不需要接电源。
Hybrids, unlike pure electric cars, never need to be plugged in.
这些都不需要额外的费用，只需插入电源，选择所需的语言并调节音量即可。
There is no extra charge for these—just plug in, select the required language and adjust the volume.
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