罷工 鎖廠 美國罷工法則 德國罷工要件 經濟性罷工 不公平勞動行為罷工 臺灣勞資處理法修正案 中國大陸罷工規範 Strike Lockout Unfair labor practice strike Solidarity strike Social adequacy Ultima ratio The revision drafts of the Labor Dispute Settlement Law in Taiwan Strike and its regulation in the Mainland China