Saturday, October 1, 2022
钢芯铝绞线按GB/T1179-1999标准规定,其最外层节径比为()。A、10~12B、12~14C、10~14D、14~16...
Monday, February 12, 2024
线材在拉伸前后应遵循()的原则。A、体积不变B、面积不变C、长度不变D、强度不变...
Friday, February 9, 2024
Wednesday, February 22, 2023
Friday, January 20, 2023
束线总根数为35根,其计算外径为()。(式中d为单线直径)A、7dB、6.7dC、6.8dD、7.33d...
Monday, April 24, 2023
Wednesday, February 22, 2023
Friday, January 20, 2023
Sunday, November 12, 2023
Sunday, September 11, 2022
Tuesday, November 7, 2023
Monday, February 12, 2024
导电线芯直径为0.6mm的通信电缆,成品上导体的断裂伸长率不小于()。A、17%B、21%C、19%D、15%...
Tuesday, November 7, 2023
Sunday, December 24, 2023
铝包钢线目前已用于架空地线中的全铝包钢绞和和铝包线的加强芯,它们还能用作()。...
Friday, February 9, 2024
Tuesday, December 13, 2022
Monday, February 12, 2024
Sunday, September 11, 2022
Saturday, December 9, 2023
Friday, February 9, 2024