"luffing" in Chinese (Simplified)
上风操作（航海）- 起重臂上扬（起重机）
Definition
“Luffing” 指帆船将前缘朝向风，使帆飘动。在起重机中，意指抬起或调节起重臂的角度。
Usage Notes (Chinese (Simplified))
属专业术语，用于航海和工程。航海中 "luffing" 既可故意也可因操作失误。起重机领域，特指起重臂上下移动而基地不动。
Examples
The sailor is luffing the sails to slow down the boat.
水手正通过**上风操作**帆来减慢船速。
The crane operator started luffing the boom to lift the load.
起重机操作员开始**起重臂上扬**以吊起货物。
"Luffing" too much can make the sailboat lose speed.
过度**上风操作**会让帆船失去速度。
During the race, he avoided luffing unless he needed to slow down before turning.
比赛中，他除非需要在转向前减速，否则避免**上风操作**。
One sign of wind shifting is when you start luffing without moving the tiller.
风向变化的迹象之一是你没动舵时却开始**上风操作**。
The team coordinated perfectly when luffing the boom to position the crane for the next lift.
团队在**起重臂上扬**时配合无间，以便将起重机调整到下一个吊装位置。