以下为句子列表：
英文: A notched board at either side of a staircase that supports the treads and risers.
中文: 木楼梯侧板，木楼梯小梁在阶梯两边支撑楼梯的踏板和竖板的有凹口的木板
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英文: Abstract: Introduced is the experience in replacing atmosperic riser with thermal-isolation riser and improving pouring system to eliminate shrinkages.
中文: 文摘:介绍了用保温冒口代替大气压力冒口，改进浇注系统解决铸件缩孔问题的经验。
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英文: Abstract: This paper has deduced a new method for risering， Δ—Parametric method.It has proved with the test curve of the British Castin g P ractice Commission.Practical results have well perfected furt her the perimetrischen quotlent method for risering.A
中文: 文摘:提出的冒口设计新方法—Δ参数法，与英国铸造实践委员会给出的实验曲线相互印证其实用性，进一步完善了冒口设计的周界商法；得出了冒口补缩效率与铸件和冒口的周界商比值成正比的结论。
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英文: Adjust the riser tensioners as required.
中文: 将隔水管张力装置调整到所需张力。
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英文: Attach the riser tensioners , choke and kill lines to the slip.
中文: 将隔水管张力器，压井及放喷管线连到伸缩节上。
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