Electric actuators vs. Hydraulic Cylinders: the plow on the CopperHead is moved up and down by a set of electric linear actuators.
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这套设备的尺寸小、重量轻，它由电动泵、液压缸和若干工程机械底盘维修专用附具组成。
This set of equipment is small in size and light in weight, consist of a electric pump, a cylinder and some attachments that are particularly designed for repairing chassis of engineering machinery.
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