查询词典 backward difference

Whose bucket is rigidly attached to a hinged pole on the boom and is drawn backward to the machine when in operation.

反铲挖土机铲叶牢固地连在吊杆上的铰链孔中的一种挖土机，当它处于工作状态时，铲叶被向后拖向机器

An excavator whose bucket is rigidly attached to a hinged pole on the boom and is drawn backward to the machine when in operation.

反铲挖土机铲叶牢固地连在吊杆上的铰链孔中的一种挖土机，当它处于工作状态时，铲叶被向后拖向机器

An industrial sewing machine for the completion of a button hole comprises a needle holder that is connected via an arm to means which ensure a forward and backward motion perpendicular to the direction of the needle.

一种用于缝制钮扣眼（1）的工业缝纫机包括一个通过一臂（21）与一装置相连接的缝纫针夹持器（20），该装置确保缝纫针夹持器沿着垂直于缝纫针运动方向的方向往复运动。

In the third embodiment, the two forward-backward moving units are free from the damp cloth, and so the cleaner of the third embodiment only performs the vacuum-cleaning operation.

在第三实施例中二个前后运动组件无湿布，因此第三实施例的吸尘器只能完成真空吸尘作业。

The backward slant of the face of a golf club head, designed to drive the ball in a high arc

球棍末端的后倾部分将高尔夫球棒棒头的面向后倾斜，用于将球击出一个高弧线

The function relatonship between the target values roll gap valus , sheet crown , pressure distribution , forward and backward tension lateral distrition and adjustabll values cross angle and bending roll fore is established under controlling strip shape .

建立起板型控制的目标量(辊缝值，板凸度，压力分布，前，后张力横向分布)与调节量之间的函数关系。

The products shows professional GPS navigator, GPS burglarproof without monthly rent, Bluetooth hand free phone, move backward image systematic area lead line; make a dash across the red light prewarning, MP3/MP4 amusement audio-visual broadcast, FM voice frequency modulation launch function and etc.

感谢您选用本公司生产的搜虎汽车智能助理。本产品具有专业GPS导航，无月租型GPS防盗，蓝牙免提电话，倒车影像系统带引导线，超速闯红灯预警，MP3/MP4娱乐影音播放，FM声音调频发射等功能。

Taking a single disk rotor with hinged ends as research object, to a different forward and backward whirling type the effect and its innate laws of the magnitude and acting direction of the constant torque on the stability are proposed by means of the eigenvalue theory of real linear systems.

以两端简支的单圆盘转子为对象，利用非线性振动理论的多尺度方法，研究了简谐扭矩作用下具有时变参数激励系统的近似解，指出系统出现不稳定组合式共振的可能性并给出了定常扭矩、简谐扭矩、外阻尼对不稳定区域边界条件的影响。

The amplitudes of forward and backward travelling wave caused by a fault were integrated respectively within a short time after fault. The fault direction was determined by the ratio of the integral values.

该方案基于故障发生后一段时间内，正向行波幅值积分与反向行波幅值积分的比值来确定故障方向。

Applying the software ADAMS for dynamic simulation and Pro/E for three-dimensional design creates the mechanical system of virtual prototyping model of the 200t crawler crane. The models of the drag bar, the spring backstop, the luffer rope and the crawler in the system are established well by ADAMS/View module. The dynamic simulation of the complete mechanical system is researched at series of work condition, which occurs possibly the crawler crane boom backward tipping as the crawler crane unloads suddenly.

本文应用虚拟样机技术动力学仿真软件ADAMS，结合三维实体设计软件Pro/E构建了200t履带起重机的虚拟样机机械系统模型，并利用ADAMS/View模块完善了系统中拉板、弹簧式防后倾装置、变幅钢丝绳和履带模型：研究了履带起重机突然卸载时可能发生臂架后倾的一系列工况下，整机机械系统模型的动力学仿真。

We were cousins—his grandfather was King of Scots,and his great-grandfather was Henry VII of England.

我们是堂姐弟——他的祖父曾是苏格兰国王，他的曾祖父是英格兰的亨利二世。

I do want to help you, but I am in a quandary now!

我是想帮你，但是我现在左右为难啊！