然后根据这一总新蒸汽负荷优化分配各台锅炉的负荷，使总燃料消耗量最低。
Then we can optimize the load of every boiler in the light of the total vapour and have the least fuel consumption.
哪两种燃料提供的能量占加拿大总消耗量的一半？
Which two fuels provide about one-half of all the energy used in Canada?
哪两种燃料提供的能量占加拿大总消耗量的一半？
Which two fuels provide about one-half of all the energy used in Canada?
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