以下为句子列表：
英文: 3 stages of temperature control,2 levels of injection pressure, non-stage abjustment injection speed and back pressure, be suitted in precise shaping of engineering plastic.
中文: 料筒油温控制，两极注塑压力，射速、背压无段调整，上、下模具温度独立控制。
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英文: Based on the experiment, we describe the multilevel pipe pressure loading method that can simulate the high back pressure of pump and has low noise property.
中文: 摘要在试验研究的基础上，论述了多级节流增压模拟水泵实际运行背压的低噪声特性。
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英文: High accuracy back pressure three-roller type laminating device and recycle oil heat device is used in the laminating roller.
中文: 高精度被压三辊式复合装置，使用热循环控温装置。
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英文: Obstruction is one of the most important abnormalities of the urinary tract， since it eventually leads to decompensation of the muscular conduits and reservoirs， back pressure， and atrophy of renal parenchyma.
中文: 梗阻是泌尿道最重要的异常之一，因其最终使肌性管道及其容器失去代偿能力，发生反压及肾实质萎缩。
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英文: Plastic time depends on plastic speed and screw back pressure, but plastic time must shorter than cure time.
中文: 熔胶时间的长短取决于熔胶速度设定的快慢,背压设定的大小,但有一点,熔胶时间控制的长短一定要比冷却时间短.
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