Spieldauer f =
	duration of game; game time
冶金, 电子产品	a specified period comprising a time during which an arc runs continuously plus an off time
曲棍球	duration of play
材料科学	playing time
足球	duration of the game
运输	duty cycle

Spieldauer : 4 短语, 3 学科

一般	1
冶金	2
水球	1