船体

It contains a hull with an engine equipped on its back. An airscrew inside ducted is set on the airscrew. An air rudder locates on the tail of the hull and an apron sets on its lower part. The balance wing with tip plates is equipped on the tail of the hull.

它包括船体，在船体的后部安装有发动机，发动机的轴上安装有螺旋桨，螺旋桨罩在涵道内，船体的尾部设置有空气方向舵，船体的下部设置有围裙，它还包括设置有船体尾部的平衡翼，平衡翼上设置有翼尖端板。

The area after the aft peak bulkhead as aft body and over 0.4 length of ship in the middle as amidships, other areas are transitional regions.

在船尾防水隔板之后的区域称为船体的尾部，在船中部超过船体40%的长度的区域作为船体的中部，其他区域是过渡地区。

The true shape of the hull can be considered by distributing dipoles on the hull surface.The pressure fluctuations on hull surface can be calculated through Bernoulli's equation.

真实的船体表面形状可以通过在船体表面布置偶极子来考虑，求得船体表面的偶极子强度后，通过Bernoulli方程可得到船体表面的脉动压力。

Vibration Hull 船体振动 The Builder to determine natural frequencies of vertical and horizontal vibrations for hull girder and deckhouse to ensure that excitation frequencies of main engine and excitation frequencies of propeller are not similar.

建造方应确定船体纵珩和甲板室的垂直和水平方向振动的自然频率，从而使主机的激励频率与螺旋桨的激励频率不同，对船尾潜在的板振动应加以分析并通过相应的设计加以消除。

In addition, the effect of sliding friction between gear teeth can not be neglected.

本文针对传统的船用齿轮在强度计算中不计船体变形及齿间摩擦力的问题，以沿船体纵向布置的渐开线料齿减速齿轮机构为研究对象，通过系统地分析、研究，推导出综合考虑船体变形及齿间摩擦的船用料齿轮齿面接触疲劳强度计算公式，以进一步完善船用齿轮的强度计算。

Hull plated grillage and hull girder is analyzed as well as the trial research on ultimate strength of hull structure.

分析了加筋板、船体板架和船体梁极限强度的计算方法以及船体结构极限强度的试验研究。

The research development of ultimate strength of hull structure is summarized and the calculation method of ultimate strength of stiffened plate,hull plated grillage and hull girder is analyzed as well as the trial research on ultimate strength of hull structure .

综述了船体结构极限强度的研究现状，分析了加筋板、船体板架和船体梁极限强度的计算方法以及船体结构极限强度的试验研究。

The real propeller geometry is considered in the computation. The calculated K〓 and K〓 are in good agreement with test results. The simulated velocity field near propeller plane and pressure distribution on hull also shows similar tendencies as the measured data.

本文对螺旋桨/船体的整体流场进行了计算，将螺旋桨和船体作为一个整体来进行流场分析研究，以揭示真实螺旋桨与船体之间相互影响的内在规律。

At present, more and more largetonnage ship is built with the development of ship industry, the forcebetween hull and slipway increased, some existent shipyard is not capableof building large ship. Besides, the damage of sh'ip structure and slipwaywere also reported. But the existed method for calculating ship launchingcan not solve it efficiently, so it is important to calculate shiplaunching precisely and take measure to preclude such accident.

目前随着船舶工业发展，建造船舶吨位越来越大，船体和船台之间的受力也随之增大，造成原有船台的设计能力有时已不能满足建造大型船舶需要，在实际生产过程中已有船体局部结构和船台不同程度损坏的报道，而现有的下水计算方法在有关船体和船台受力计算方面显得不够准确，如何准确进行计算并采取相应的措施来防止这类问题发生显得十分重要。

The hull (4) has an abruptly down-swept trailing edge portion (18) which, in the preferred embodiment, is in the form of a flap extending across the full width of the transom of the hull and which projects beyond the level of an upswept portion of the underside (14) of the hull by only a small fraction of the length of the hull.

该船体(4)具有一个突然下掠的后缘部分(18)，在优选实施例中，该后缘部分呈横过船体尾板全宽延伸的折翼的形式，并且该后缘部分超过船体下侧面(14)的上掠部分的水平只伸出一个船体长度的一个小部分。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。