It changes working radius usually by luffing jib.通常多采用俯仰臂架的方法来实现工作幅度的改变.We set the flying jib and cracked on.我们扯起三角帆,顺风行驶....those who jib at the idea of selling their land.那些拒绝出让土地的人A - type quayside container crane wit...
在纸板上涂两三层清漆使其变硬。Give the cardboard two or three coats of varnish to harden it.这种材料需要有更高的温度和压力才能凝结变硬。The material requires higher temperatures and pressures to set hard.雪成冰后变硬了.The snow hardened until ice was formed....