以下为句子列表：
英文: The characters of SDY oscillationing oil cylinder type hydraulic steering gear are:the construction is simple and reasonable,operation is flexible and steady,maintenance is convenient and leaktightening. we also assemble two suits control devices (hand st
中文: 200摆缸式液压舵机具有结构简单合理，操作灵活、工作平稳、安装维护便捷和无泄漏等特点，并备用两套操纵装置（手操舵和应急操舵）及油泵，性能安全可靠。
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