问题:单选题()不属于机械传动。A 液压传动B 链传动C 齿轮传动D 蜗杆传动...
Saturday, January 20, 2024
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:金刚石钻进时,在岩层条件允许的情况下,应选用清水作冲洗液。...
Friday, September 16, 2022
Wednesday, June 28, 2023
Saturday, September 17, 2022
问题:单选题多刃深孔钻头()处有喷液小孔,钻杆中间有切削液输入孔,可将碎的切屑用高压切削液冲走。A 副切削刃B 横刃C 主切削刃D 圆周面...
Friday, April 26, 2024
问题:三相异步电动机中的“异步”是指转子轴和转子绕组转动时不同步。...
Friday, September 16, 2022
Sunday, February 19, 2023
问题:在夹具中,对工件上已经精力加工的平面进行定位时,通常用()作定位元件。...
Thursday, September 22, 2022
Thursday, September 22, 2022
问题:单选题处理烧钻事故,透小眼后下步做法正确的是()。A 下套管公锥捞岩心管B 下炮弹形钻头扫事故钻头C 用带导向的磨孔钻头消灭事故钻具D 用旧金刚石钻头劈开事故钻具...
Wednesday, June 28, 2023
问题:单选题扩孔钻进时,为了减少施工程序,应该()。A 减少扩孔级数、增大扩孔级差B 增多扩孔级数、减少扩孔级差C 增多扩孔级数、增大扩孔级差...
Tuesday, December 26, 2023
问题:多选题套管柱在井内主要受哪几种力()A拉力B外压力C内挤力D扭力...
Friday, October 13, 2023
问题:单选题标准麻花钻头的后角是在()内度量的。A 主剖面B 园柱剖面C 基面...
Wednesday, June 28, 2023
Friday, April 26, 2024
问题:单选题钻头使用后期,如遇转盘负荷增大、蹩跳、打倒车、钻速明显下降,应(),防井下事故发生。A 调整参数,继续钻进B 汇报值班干部C 立即停止钻进,循环起钻...
Saturday, December 10, 2022
问题:双动双管内钻头一般超前于外钻头,岩石愈松软则超前愈多。...
Thursday, September 22, 2022
Wednesday, June 28, 2023