You need to use your back muscles to swim the butterfly-stroke.

Swimming is divided into breaststroke, freestyle, backstroke, and butterfly stroke.

游泳分为蛙泳, 自由泳, 仰泳, 蝶泳.

The butterfly stroke had not accepted as a formal event until 1958.

蝶泳被列入正式比赛项目是在1958年.

Two Chinese women swimmers have already entered the 100-metre butterfly stroke finals.

已经有两位中国女选手取得了100米蝶游的决赛权.

Baumann 25000 Butterfly control valve is a low torque and low noise butterfly valve.

鲍曼25000蝶阀控制阀是一种低扭矩,低噪音蝶阀.

Hsieh Yu butterfly valve is designed for installation with square screw, nut and washer.

协羽的蝶阀安装设计是使用方形螺丝, 螺母及华司所组成.

The handle ( or gear box ) of butterfly valve can be rotated backward or forward for 180 degrees.

蝶阀的把手 ( 齿轮箱 ) 可以反转或正转180度操作.

It is completely opposite to the butterfly valve of the exhaust pipe connected to the muffler.

与消音器连接的排气管处蝶阀为常关闭状态,当取力器开关接通时开启.

Click here to learn about Ball Valve, Gate Valve, Butterfly Valve, Solenoid Valve, or Needle Valve.

了解更多球阀, 止回阀, 蝶阀,电磁阀, 针型阀, 安全阀,减压阀,疏水阀,陶瓷阀门,过滤器产品与技术.

Butterfly valves are commonly used for clip-on butterfly valve and two Flanged butterfly valve.

常用的蝶阀有对夹 式 蝶阀和法兰式蝶阀两种.

Such as gate valve, globe valve, ball valves, plug valves, valve, butterfly valve and so on.

如闸阀 、 截止阀 、 球阀 、 旋塞阀 、 隔膜阀 、 蝶阀等.

The butterfly valve structure principle is particularly suitable for production of large-diameter valves.

蝶阀的结构原理尤其适合制作大口径阀门.

The movements of check valve located at Valve valve seal on the Butterfly valve seat surface.

升降式止回阀的阀瓣座落位于阀体上阀座密封面上.

Clip-on butterfly valve is the valve head bolt flange type >.

对夹 式 蝶阀是用双头螺栓将阀门法兰式>.

Selector switches for the by-pass butterfly valve is located on MCC 2.

旁通电动蝶阀的选择制设在MCC2上.

The butterfly valve butterfly plate installed in pipeline diameter direction.

蝶阀的蝶板安装于管道的直径方向.

Simple construction of the Model-C butterfly valve results from its unique design.

独特的设计使得型号C蝶阀具有结构简单的特点.

Main equipments such as: large-scale vertical lathe, borer, butterfly valve testboard etc.

主要设备有: 大型立车?镗床?蝶阀测试台等.

He was just buttering up to the director to try to get a favour from him.

他正在巴结主任,试图从他那里得到好处.

Never bite straight into a roll and refrain from cutting it in half and buttering.

不要直接咬一卷面包,或将它只切成一半就放进油锅煎.

The effect with and without buttering layer on the hardness of worn off layer is tested.

试验了堆焊层磨损减薄后对无隔离层和有隔离层硬度的影响.