根数 root
[数] radical
- 穿管根数指有负荷发热的电缆,根数。
Quantity in tube is the cable with burthen. - 一般喷丝头细孔的数量决定了纱中长丝的根数。
Usually the number of holes in the spinneret determines the number of filament in the yarn. - 设计变量以符合常规习惯的梁截面尺寸,主筋根数、直径,箍筋直径、间距等离散变量的形式出现。
The design variables are in the forms of discrete variables of the size of beam section, diameter and quantity of reinforcement, diameter and space of hoop.
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