mainsail

基本解釋

Both the mainsail and head sail have separate halyards, as do other sails such as a spinnaker.
主帆和前三角帆有各自獨(dú)立的升降索，其他的帆如賽艇大三角帆(spinnaker)也一樣。
Conway, 55, turned the key and scrambled to drop the mainsail, but the craft was already rolling onto its starboard side.
55歲的康維轉(zhuǎn)動(dòng)鑰匙，爬上桅桿想把主帆降下來，但船身已開始向右舷傾斜。
This is still a Bermuda rig, but the mainsail is proportionally larger and the jib smaller, for ease of handling and maximum power.
這仍然是一個(gè)百慕大帆，但主帆成比例地變大了，而前帆則相應(yīng)變小，以便于操縱并獲得最大動(dòng)力。

Tiketitan heeled ominously, then accelerated to 13 knots, overtaking more cautious sailors who remained under jib and mainsail.
FORBES: Wallypalooza
Mariquita's crew trims her huge mainsail by hand, forming a line and tugging in the rope with methodical jerks.
FORBES: Old Gaffers

(on a boat or ship) the most important sail (= a sheet of material attached to a pole, to catch the wind and make the boat or ship move), which is placed on the mainmast