求翻译：主油管和电缆桥架固定时各支撑间距不能大于2米，主油管用U形卡固定，电缆桥架应用M8螺栓与支撑架固定牢固，不得用电焊点焊上，一般不允许用铆钉铆接。是什么意思？

Fixed tubing and cable tray support spacing can not be greater than 2 meters, the main pipeline is fixed using the u-shaped card, cable tray application m8 bolt with support frame fixation, may not be used on the welding spot, generally does not permit the rivet riveting .

Main line and the cable bridge is fixed by the distance cannot be greater than 2 M, the main line with U-card fixed, cable bridge application M 8 bolt and the bracket is firmly fixed, and may not be used on welding point, welding generally does not allow the rivets riveting.

The oil main line and the electric cable bridge fixed time each support spacing cannot be bigger than 2 meters, the oil main line is fixed with the U shape card, the electric cable bridge applies the M8 bolt and the carriage fixed reliable, does not have to use in the electric welding spot welding,

Main tubing and cable bridges fixed support spacing cannot be more than 2 m, u-card for main tubing, cable bridge using M8 bolts and support frame fastened, no welding on spot welding, rivets rivet is not allowed.

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