We already have some indicators of productivity on this stuff. OK, if you put steam into coal fields or petroleum fields that have been running for decades, you can get a really substantial increase, like an eight-fold increase, in your output. This is just the beginning stages of this stuff.
生産性についての指標が少し得られています 十年以上稼働している石炭鉱脈や油田に 蒸気を導入すると 産出量は増大します 例えば 8倍増など これはまだ初期的な 段階にすぎません