以下为句子列表：
英文: A warm winter and a mild hurricane season last year have combined with a forecast for warmer-than-normal temperatures this winter to pressure oil prices.
中文: 去年是暖冬及少飓风的季节，加上天气预报报道今年冬天的温度比正常情况下高，都给油价带来了压力。
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英文: Abstract: “High pressure oil shock” has been found to be the major source of shock noises in the rotary piston vacuum pumps.Recently,we found that the oil shock may shift forward.Here,the high pressure oil-shock and the formation mechanism of three other
中文: 文摘:“高速油液冲击”是滑阀真空泵冲击噪声的主要激励源，通过试验发现了这一冲击的前移现象，并进一步分析了高速油液冲击和其他三种冲击的形式，为降低滑阀真空泵噪声提供了可靠的依据。
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英文: Electrohydraulic push rod drives the two-way pump to output pressure oil with rotation of motor clockwise and counter-clockwise, by control of hydraulic valve, send to the hydraulic cylinder, to achieve the reciprocating movement of the piston rod.
中文: 电液推杆以电动机正反转，带动双向泵输出压力油，经液压阀控制，送至液压缸，实现活塞杆的往复运动。
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英文: Ningbo Longhua Hydraulic Pressure Piece Co., Ltd. was established in 1988, specializes in making hydraulic pressure oil jar, high intension screw, now covering floor 23 are, workshop 15000 sq. m., has 300 employees, registered capital 2 million yuan and f
中文: 宁波市龙华液压件有限公司,创建于1988年,为股份制企业，专业生产液压油缸、高强度螺丝等，现有注册资金200万元，占地23亩，厂房面积15000平方米，固定职工100余人，博士一名，固定资产1500万元，拥有数控加工机械，产品根据国家商检标准，年产值3000万元，产品畅销国内市场。
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英文: The system is mainly comprised of a computer, sensors, cable, high pressure oil lines and electromagnetic overflow valve, has both the functions of measuring and control, and is awarded the explosionproof qualification certificate by China Classification
中文: 该系统主要由计算机、传感器、电缆、高压油管线和电磁溢流阀等组成，既具有监测功能，又具有控制功能，而且取得了中国船级社的防爆合格证书。
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