双桅帆船

Masted fore - and - aft - rigged similar to the ketch but having a smaller jigger mast stepped abaft the rudder .

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

A two - mast ed fore - and - aft - rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped abaft the rudder.

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

A tall chimney A two - mast ed fore - and - aft - rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped abaft the rudder.

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

A two - masted fore - and - aft - rigged sailing vessel similar to the ketch but having a smaller jigger mast stepped ab aft the rudder.

双桅帆船一种有纵帆装置的双桅航船，类似于双桅纵帆船，但在船尾的船舵放置有一种较小的补助帆桅

A 32m ketch—Dragon I has finished the design, passed the certification and has began the construction in China now.

一条32m无能耗动力双桅帆船——海龙号在中国完成了设计，并且通过了船级社的检验，开始在中国工厂投入建造。

To remove from a step.the third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy.

帆船上从船头算起的第三条桅杆有三根或多根桅杆；快艇、双桅船或双桅帆船上后面的短的桅杆。

Any of various small, swift boats.the third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy.

帆船上从船头算起的第三条桅杆有三根或多根桅杆；快艇、双桅船或双桅帆船上后面的短的桅杆。

The third mast from the bow in a vessel having three or more masts; the after and shorter mast of a yawl, ketch, or dandy.

帆船上从船头算起的第三条桅杆有三根或多根桅杆；快艇、双桅船或双桅帆船上后面的短的桅杆。

A schooner is a sailboat, stupidhead.

笨蛋，双桅帆船是帆船的一种

The taller mast, whether forward or aft, of a two-masted sailing vessel.

主桅双桅帆船中较高的桅杆，无论是位于船头的还是船尾的

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。