搜索 - 科创

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之前我制作过酒精作燃烧剂的发动机，但测试过发现推力过小，分析过是什么问题，觉得是燃烧室和喷嘴的问题，把这两位调整过后依然推力极小，请各位多多指教。1号:燃烧剂：酒精大约60%、助燃剂：液氧2号:燃烧剂...

急需一款电热切割器，我在北京大兴区采育镇，在淘宝买了一个调压器，单相电可变0V-300V电压，功率500W，电热丝直径1mm，不知什么原因，变压器调到25V电压左右时，变压器就冒烟了，求教是什么原因，...

用于高可靠性设备的液压驱动装置，将电动液压泵和液压执行器以及控制阀做成一个整体单元。用变频电机和电子变量泵做压力变送器的执行元件系统闭环工作，采用闭式液压回路不设油箱，蓄能器增压防止液压泵吸空产生空穴...

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