Sunday, April 14, 2024
问题:小皮带轮作为主动轮,在运转过程中,经受变应力,其最大应力发生在()的接触处。A、松边与小轮B、松边与大轮C、紧边与小轮D、紧边与大轮
Saturday, February 3, 2024
Saturday, January 28, 2023
Monday, July 24, 2023
问题:1弧度约等于()A、57.3°B、5.73°C、0.573°
Monday, April 15, 2024
问题:核部为老地层,两翼为新地层,该褶曲属于()。A、背斜B、向斜C、根据具体而定
Sunday, February 19, 2023
Tuesday, January 2, 2024
Tuesday, January 2, 2024
Saturday, January 13, 2024
问题:在钻孔设计或实测顶角θ≤3°时,每百米测一次顶角,不测方位。
Tuesday, January 2, 2024
Friday, September 22, 2023
问题:一对直齿圆柱齿轮传动,主动齿轮齿数为30,从动轮齿数为6,模数为3,啮合齿轮的中心距为()A、36B、24C、39D、54
Tuesday, January 2, 2024
问题: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
Monday, April 29, 2024
Sunday, February 19, 2023
Thursday, September 15, 2022
Sunday, October 30, 2022
Monday, July 24, 2023
Wednesday, May 3, 2023
Sunday, April 7, 2024
Sunday, April 7, 2024