Pay-off strand, stranding cartage, compact diestand, counter meter, double draught wheels, take up and traverse device, mechanical transmission system and electrical control system.
放线架、各段绞笼体、线模座、计米装置、双轮牵引装置、收排线架、传动系统和电控系统。
2
For the population to stand still, each woman needs to have 2.1 children (one child per parent, plus an extra 0.1 to account for women who die young, are infertile, or otherwise do not have children).