法兰相邻两螺栓孔中心间距的允许偏差的±()。A、0.1mm B、0.2mm C、0. 发布时间:2017-07-26 17:04 │ 来源:www.tikuol.com 题型:单项选择题 问题: 法兰相邻两螺栓孔中心间距的允许偏差的±()。A、0.1mmB、0.2mmC、0.3mmD、0.4mm
题型:单项选择题 On a weather map,a large letter “h” means()A.a high pressure area with cool, dry air and fair weatherB.a high pressure area with warm, moist air and inclement weatherC.horse latitudes, with rough seas and p windsD.a heavy squall line near the “H” 查看答案