the japan-u. s. 「keen sword」 joint military exercises, held biennially starting from 1986, are one of the biggest actual-troop drills between the two countries.
日美「利剑」军演从1986年起每两年举行一次,是两国最大规模的实兵演习之一。
produced biennially by the staff of hydrocarbon processing magazine, this handbook-type industry reference source, now on cd-rom, contains more flow diagrams and descriptions then ever before.