标题: en 15503中3.17的理解 [打印本页] 作者: oahemr 时间: 2011-12-21 18:28 标题: en 15503中3.17的理解 各位：帮忙看一下，EN 15503中3.17
throttle setting device
arrest device allowing the throttle to be temporarily fixed in and released from any required position to ease working with the machine over a period of time.
这段文字的准确理解是？