神马作文网英语翻译Salt water of concentration 0.1 pound of salt per gallon
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英语翻译
Salt water of concentration 0.1 pound of salt per gallon flows into a large tank that initially contains 40 gallons of pure water.If the flow rate of salt water into the tank is 5 gal/min,find a formula for the salt concentration f (t) (in lb/gal) after t minutes.
Salt water of concentration 0.1 pound of salt per gallon flows into a large tank that initially contains 40 gallons of pure water.If the flow rate of salt water into the tank is 5 gal/min,find a formula for the salt concentration f (t) (in lb/gal) after t minutes.
浓度是每加仑0.1磅的盐水,导入已经含有40加仑纯水的大水槽中.如果向水槽倒入盐水的速度是每分钟5加仑,找出一个公式,表达t分钟以后盐的浓度f（每加仑有多少磅）
the most of water there___ salt.
Make full use of the sea water.Carry salt water
a glass of water,a grain of salt
a glass of water, a grain of salt 歌词
the salt of the
large grain of salt.
英语翻译Salt is as necessary to life as water.In many areas of A
t.tolerance is water,dilute the pain of salt.
英语翻译There are lot of salt wells in Sichuan.A salt well is mu
with a grain of salt
a covenant of salt for
salt of the earth 歌词