“截断的”用英语怎么说？

截断的喷管具有较大的推力.The truncated nozzle is found to have a higher thrust.这个截断的过程叫做往下舍入.The process of truncating is called rounding down.方法是一种有效的用于边界截断的数值计算方法.MEI is an effective numerical method to truncate finite difference ...