刀五，是术语围棋。也称“板刀五”、“刀板五”、“刀柄五”、“刀把五”、“绛节五”。一块棋被包围，其眼位呈刀形状的五个空交叉点，称为“刀五”。基本死活之一。如图中形势，若轮黑方走，下在甲位可做活；若轮白方走，在甲位点眼，黑子被杀。
提出了一种平底刀五坐标数控加工的干涉检测及刀位角修正算法。
An algorithm for interference checking and Angle adjustment of 5 axis nc machining to flat end cutter is proposed.
男人的浴室里有五样东西：一把牙刷、剃须膏、剃须刀、一块肥皂和一条从假日酒店顺来的毛巾。
A man has five items in his bathroom: a toothbrush, shaving cream, razor, a bar of soap, and a towel from the Holiday Inn.
一美元一杯在纽约是标配，两个美刀可能引起别人的注意；第一杯就给五美刀会让你闪亮一整夜。
A dollar a drink is standard practice in New York; two bucks might get you noticed; five on the first drink should get you generous pours all night.
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