螺旋桨

The ship electric propulsion system that we are going to discuss consists of the following parts: six-phase double Y winding shifted by 30°synchronous motor, diode clamped three-level inverter, fixed pitch propeller and control installment of electric propulsion systems based on air-gap-field orientation vector control.

本论文所研究的船舶电力推进系统各个组成部分分别是：双Y移30°六相电励磁同步电动机、二极管嵌位式三电平逆变器、定距螺旋桨船舶推进器和采用基于气隙磁场定向矢量控制策略的电力推进系统控制装置。

A discharge of oil resulting from damage to screwshaft and tube shaft oil seal device.

螺旋桨轴和尾轴油封装置损坏而引起的排放。

At the beginning of 2007, the data of COSCO Shanghai demonstrated that the oil-saving effect on "Yuan He","Teng He" and "Zhen He" vessels reached 22.8%, 6.5% and 8.6% respectively. Given the elements involved such as the improvement of hull surface finish, propeller surface finish, the working condition of the main engine after repair and the relatively small amount of data in the relatively short statistical period, the saving effect of PBCF might be "amplified" at present. Therefore, the Company will keep on tracing and analyzing the data.

在2007年初，根据上海远洋的提供的数据显示，&远河&、&腾河&和&珍河&轮安装PBCF后的节油效果达22.8%、6.5%和8.6%，这中间存在修船后船体表面光洁度、螺旋桨表面光洁度、主机工况的改善的因素，加之统计的周期相对较短，统计的数据相对不多，可能使目前PBCF的节能效果&放大&，因此，有待继续进行跟踪统计分析。

The distinguishing features of the hull form are as follows:(1) Each of the two skegs extends downward to the base line and afterward to the rudder pindle in order to protect the propeller and the rudder from being damaged;(2) The form of the hull bottom is designed considerably flat for the need of taking the ground....

其船型特点是：双尾鳍向下延伸至基线，并带舵托，对螺旋桨和舵起到良好的保护作用；船底形状较为平坦，便于座滩。快速性试验结果表明，该船的阻力性能和推进性能在设计航速（Fr＝0.384）时都是优良的。

We have expanded our operations to provide solutions to industries as disparate as food, leather, pallet

给各个行业提供解决方案，其中包括：食品、皮革、托盘消毒、直升机螺旋桨片。

Like the somewhat similar Hiller VZ-1 "Pawnee", the Aerocycle carried its single pilot and 32kW engine on a circular platform located just above two belt-driven, contra-rotating fifteen-foot propellers.

像有些类似希莱尔弗策- 1&波尼&的Aerocycle进行旋转15英尺的驱动螺旋桨，禁忌单的试点和32kW的发动机在一个圆形的平台上方还有两个带。

B Where the Load up/down program is not provided, the Engineer shall increase and decrease the speed in accordance with the speed increase and decrease procedure of each ship, and shall pay attention to the Load Indicator, the RPM of the Main Engine or RPM of the propeller shaft, CPP pitch, the speed

如已提供增减负荷程序，轮机员应根据速度增加和减少程序进行加减速，特别注意，负荷显示、主机转速、螺旋桨轴转速、可变螺距、船速等，避免突然加减负荷。

For Pushers (Plane with the motor in the back of the plane), not inverting the propeller

对于后推进的飞机，螺旋桨装反了。

I had been waiting on this step to make sure the propellers fit inside.

我一直在等待这一步，以确保合适的螺旋桨内。

This is a bit like going back to propellers.

这有点像回到了螺旋桨发动机的时代。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。