magmatic evolution

The mathema-(tic) model of the adjustable-pitch screw propulsion is established.

为了增加优化过程的实时性,本文提出了一种基于在线仿真的穿浪船可调桨推进智能控制及其系统优化方法。

Attends the competition the contestant sits onnarrow and small racing boats, the back to marches forward thedirection, the use fixes on the hull on the support short oar delimitsthe oar advance.

参加比赛的选手坐在狭小的赛艇上，背对行进方向，利用固定在船身上支架上的短桨划桨前进。

Huck at the after oar and Joe at the forward.

哈克划右桨，乔划前桨。

They were propelled through the water by single-bladed paddles usually made from wood.

他们用木制的单桨划水使船前进。

"bowman:a person who oars, rows, or paddles at the bow of a boat."

前桨手:在船头摇橹、划桨或荡桨的人。

A person who oars, rows, or paddles at the bow of a boat.

前桨手在船头摇橹、划桨或荡桨的人

To transport or propel by rowing.

以划桨推进通过划桨运输或推进

The boat gave a bound forward at every pull of the oars.

划一桨，船便往前冲一下。

You see, Rosa. Canoes are open boats. Competitors kneel in the boats and move them through the water using single-bladed paddles.

罗莎，你看，划艇是敞开的，运动员跪在艇上用单叶桨划水，使之前进。

Trireme : Oar-powered warship (325B.C.~301B.C.)

三层划桨战船:靠划桨来推动的战船(公元前325～公元前301) 。

A large rowboat formerly used by British customs officers.

英国式敞开划桨船英国海关官员从前使用的一种划桨大船

They shoved off, presently, Tom in command, Huck at the after oar and Joe at the forward.

他们很快就撑舟弃岸，由汤姆任指挥，哈克划右桨，乔划前桨。

The oar or the person wielding the oar closest to the bow.

前浆或最靠近船头的划桨人。

To row slowly and gently.

荡桨慢悠舒服地划桨

A sculling stroke consists of the following elements: catch, drive/pull, through, finish, and recovery.

双桨艇划桨由以下动作成分组成：提桨，拉桨，划桨，结束和回桨。

The showboat paddled slowly toward the shore.

演艺船荡桨缓缓地向岸边前进。

a large wheel fitted with paddles and driven by an engine in order to propel a boat.

用发动机驱动推进船只运动的带有划桨的轮子。

The method of rowing such a boat, in which the persons fore and aft use one oar each and the person amidships uses two.

三人划艇法划动这种船的方法，前后两人各执一个桨，中间一人执双桨

A rowing or paddling stroke in which the oar or paddle is pushed forward, used to check a boat's forward motion or move it backward.

倒浆把橹或桨向前推以阻止船向前运动或向后移动的一种划船或摇桨方式