The mud flap assembly according to claim 1 wherein said mud flap defines an elongated recess accommodating said elongated support member 根据第一条要求来看，挡泥板总成中的挡泥板可以理解为一个可伸缩（伸缩式）的凹形板装配到一个也可伸缩的支撑件上。
This article analyzes some regulations for safety steering column , discusses the distribution of crashing energy and the structures and the safety control principls with flex steering shaft , breaking steering shaft , sleeve steering pillar tube as well as ripples tube steering pillar tube 摘要分析了安全转向柱的法规要求，汽车碰撞能量的分配，伸缩式转向轴、可断开式转向轴、套筒式转向柱管、波纹管式转向柱管等的结构和安全控制原理。
Exhibition hall on the second floor also has 5 operable partition walls and employs a pillar free structure with steel grinders in large span which makes space more spacious for use and more flexible in layout . large space of 34 thousand square meters may meet requirements of conferences of various scales and types to the best content 二层展览大厅同样拥有5个伸缩式隔断，采用钢梁大跨度无柱结构，使3 . 4万平方米的无柱大空间更加开阔，布局更加灵活，可满足超大规模展览的需要。
Technical advantages : basically overcomes the condition in which the external force produced by connection relation of traditional metal bumper and supporting frame cannot be mitigated ; it is collapsible multi - step damping and shock - absorbing , and collision finally dulled 本装置技术优点：基本克服了传统的金属保险杠与大梁连接关系所产生的外力不能冲减的现状；它是伸缩式多级减震减碰，最终缓冲了碰撞力；该装置结构简单,成本低廉；经汽车生产厂家将大梁前无效部分稍微缩短而保持原车型基本不变。
A novel algorithm is presented for task decomposition and assignment , which is used in pursuit and sending task . the argument of its superiority and the analysis of its complexity are given as well . based on the " constriction algorithm " used in searching for the target in the image , the " stretch and constriction algorithm " is presented for target search , which receives a better result 在对任务层规划的研究中，面向围猎和押送任务提出了一种新的任务分解分配算法，并对该算法进行了较优性证明和复杂度分析；面向目标搜索任务，参考图像处理中的“收缩式”搜索方法提出了一种“伸缩式”搜索方法，能够更快的发现目标所处位置。
The rigs indlude special carrier ( developed by our company ) , engine , hydraulic transmission , right angle gearbox , single ( double ) drum drawwork , rotary table transmission box , hydraulic drawworks , front and rear supporting frame , double - section hydraulic telescopic mast , crownblock , travelling hool , weight indicator , hydraulic , pneumatic and electrical system , etc 专用底盘为载车，由专用汽车底盘、发动机、液力变速箱、角传动箱、单（双）滚筒绞车、转盘传动箱、液压绞车、前支架、后支架、双节液压伸缩式井架、天车、游车大钩、指重表、液压系统、气路系统、电器系统等组成。
