L The rod has mass m and it has length l.
杆子质量为M，长度为。
This can be done through adjusting the length of the tie rod.
调节前束可以通过调节横拉杆的长度来进行。
Welding length obtained from one welding rod is short.
一根焊条所得到的焊缝长度有限。
The connecting rod of the power base has fixed length.
动力底座的连杆做成定长。
The connecting rod of the power base has fixed length.
动力底座的连杆做成定长。
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