题目内容
接触器触点的结构形式有(_)和(_)两种。
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当线圈通电时,交流接触器的常闭触头先断开,常开触头后闭合。
交流接触器的常开触头和常闭触头不是联动的。
所谓触头的常开和常闭,是指电磁系统通电动作时触头的状态。
This week, Californian wine workers vote on a(1)____proposal from winery owners. The workers have now been on (2)____for six weeks. The contract proposal calls for cuts in wages and cuts in(3)____. The prospects for rank and file approval seem(4)____. A central issue of the strike is the(5)____well-being of the California wine industry. William Drummond reports. A gondola containing tons of freshly Picked Chardonnay grapes is dumped into a hopper as the process begins for bottling the 1986 vintage. The harvest has continued despite the fact thatmore than 200 winery workers have stuck in 12 of the biggest wineries in Northern and Central California. Relying on automated plants and non-union labor, members of the Winery Owners Association have succeeded in carrying on what looks like business is usual. But out on picket line union worker Pat Scoley is anything but pleased. I guess they're doing all right. If they aren't, they want us to think they are. I hope to hell they aren't, between you and me.
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