n.升降索；吊索
Ladderline was designed as an optimal halyard for fire service extension ladders. Ladderline设计为最佳的升降索给消防服务扩展梯子。
For example, the halyard, uses in the crane code high and low, must very solid durable. 例如，旗绳，用起重机代码在高，低，必须十分坚实耐用。
halyard from which the flag is flown. 无论以任何方式，国旗决不能用于广告目的。
pendant halyard 桅顶旗索
wire halyard 升降钢索
