This paper introduced the theory analyzing and test researching of the V type internal cone flow transducer applied in locomotive braking system.
对应用于机车制动系统的“V”型内锥式流量传感器进行了理论分析和试验研究。
Development and application of die tap type external hook composite fishing tool;
公锥式外钩复合打捞工具的研制与应用
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