穿管根数指有负荷发热的电缆， 根数。

Quantity in tube is the cable with burthen.

youdao

在各种管件中，铜管件的性能价格比是首屈一指的。

In a variety of pipe fittings, ass fittings cost performance is second to none.

youdao

在各种管件中，铜管件的性能价格比是首屈一指的。

In a variety of pipe fittings, ass fittings cost performance is second to none.

youdao