查询词典 fore and aft

A "Masthead light" means a white light placed over the fore and aft centerline of the vessel showing an unbroken light over an arc of the horizon of 225 degrees and so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on either side of the vessel.

桅灯是指安置在船首尾中心线上方，在225o 水平弧内显示不间断的白色灯光。其设置应使灯光从船的正前方到每一舷正横后22.5o 内显示。

RULE 21 Definitions "Masthead light" means a white light placed over the fore and aft centerline of the vessel showing an unbroken light over an arc of the horizon of 225 degrees and so fixed as to show the light from right ahead to 22.5 degrees abaft the beam on either side of the vessel.

桅灯是指安置在船首尾中心线上方，在225o 水平弧内显示不间断的白色灯光。其设置应使灯光从船的正前方到每一舷正横后22.5o 内显示。

The Master shall have the Duty Officer of the watch fix the ship's position promptly and frequently from such sure marks as conspicuous landmarks or sea beacons, which he shall check and shall also grasp the deviations from course by targets fore and aft of the course or by the distance abeam from targets.

船长应命令当班驾驶员确定船位，根据如海上灯塔、显著陆标的位置来判断船舶的偏行距离。

With the development of coastal and offshore engineering , there is a serious sediment deposition in the neighborhood of fore and aft of alongshore pile wharf. The problems are paid more and more attention .

随着近海及海岸工程的发展，桩基码头建设后码头前后沿附近泥沙淤积问题相当严重，也引起学者研究的兴趣。

After analyzing and processing the grating reticle image collected by CCD, the mapping coefficient can be accurately calculated from grid size to pixels. Comparing the fore-and-aft two grating reticle images after the worktable moved. Adopting phase difference ratio arithmetic based on Lissajous figures,the phase difference of two images will be figured out. The displacement of the worktable can be further calculated by the mapping coefficient.

调整光路使CCD获取清晰的光栅图像，对图像进行分析处理，计算出栅距与像素之间的映射关系，再对工作台移动前后的光栅图像进行对比，采用基于李萨如图的相位差比率算法获取它们的像素位置差，从而计算出工作台的实际运行位移。

ADAMS. According to a function with STEP5 has features of continuous first and second derivative,the higher degree of approximation,etc.,we test and verify feasibility of fore-and-aft movement and turning gait of the robot. Thus a solution of the Snake-like robot motion under the ADAM...

ADAMS软件对蛇形机器人进行了从样机模型建立到运动学仿真与分析等一系列研究；并根据STEP5函数具有一阶与二阶导数连续、较高的逼近程度等特性验证了蛇形机器人前后移动和左右转弯步态可行性；找到了一种在ADAMS环境下求解机器人运动的方法，简化了理论计算，提高了设计效率。

Leastsquare method and Lagrange's interpolation formula see their applicationsfor fitting fore-and-aft lines-whose aim is to calculate the intersection point ofequivalent inclined waterline-and differences. In order to replace theinconvenient alternate conduct of drawing and calculating, improvement hasbeen introduced into the paper which means all work can be done bycomputer. Capacity calculation cannot be done without boundary layer build-up. Fit every area curve and area moment curve is necessary because ofinterpolation.

在第二章中，给出了B样条函数的数学表达形式，推导了B样条曲线下所围面积、面积矩公式；讨论了最小二乘法和拉格朗日插值法的数学形式，并在拟合船体型线上给出首、尾轮廓线的具体实例，对比不同方法进行拟合的差异，其目的是为了求得与等体积倾斜水线的交点；而水线的确定改变了以往人工作图与计算交替进行的不足，尝试用计算机完全代替人工作图，以求有所改进；在舱容计算中，在至少包括舱室前、后壁的范围内拟合横剖面积、面积矩曲线，插值求得任一纵向位置处的剖面，以解决舱室边界条件。

The fore-and-aft and up-and-down adjustments of the mouthpiece/nosepiece have become more sensitive and functional, allowing smooth and quick setup by one-hand maneuvering.

嘴夹及鼻夹的形状可根据鼠的嘴进行调整，其前后、上下的调整更为敏感，功能性，可单手进行快速安装。

"You tend to get bad fore-and-aft rocking on the di-wheel, which is really a kind of tank slapper," he explains, and you have to snap the brakes on and off in an effort to reduce it. But if you get your timing a bit wrong, it just gets worse.

" "你往往会得到不好的前列和尾部摇摆对直接投资的四驱车，这实在是种坦克冲击片，"他解释说，"你必须管理单元刹车和关闭在努力减少它，但如果您收到您的时间有点错误的，它只是进一步恶化。

Child pretext minister goes out, its color and bug body similar or nigger-brown, slightness is cylindrical, a bit screwy, without bifurcate, diametical 0.3cm, grow 4 ～ 7cm, the surface has petty fore-and-aft furrow, coping a bit expand is infecund end.

子座由头部长出，其色和虫体相仿或深棕色，细长圆柱形，稍扭曲，没有分叉，直径0.3cm，长4～7cm，表面有细小的纵向皱纹，顶部稍膨大为不孕端。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。