Self-priming sewage pump over-current components Material: cast iron, stainless steel.
自吸排污泵过流部件材质：铸铁、不锈钢。
America is now the number one producer of oil and gas, saving drivers about 70 cents a gallon at the pump over last Christmas.
美国现在是头号石油和天然气生产国，美国的驾驶人们比去年圣诞节前后每加仑可以节省大约70美分的油钱。
America is now the world's number one producer of oil and gas, helping to save drivers about a buck-ten a gallon at the pump over this time last year.
美国现在是世界上头号石油和天然气生产国，这使驾驶人们自去年这个时候以来每加仑节约1美元10美分。
America is now the world's number one producer of oil and gas, helping to save drivers about a buck-ten a gallon at the pump over this time last year.
美国现在是世界上头号石油和天然气生产国，这使驾驶人们自去年这个时候以来每加仑节约1美元10美分。
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