fwd 中文意思是什麼

Chapter four basing on the analyze of the pavement bearing strength using winkler subsoil model, modulus back - calculation was done through the fwd dynamical basin

第四章在採用winkler地基模型來分析路面承載力的基礎上，利用fwd的動態彎沉盆進行模量反算。

At present, the most of vtr which are used in watch - control occasion for speciality are short of a uniform control - check - alarm system, which brings on the discommodiousness of operation and the user can not know the time of occurring a fault, which reduces the reliability of the watch - control system. therefor, at first, i carefully analyze the servo theory of the vtr which had been produced by chmavc with k mechanism to find out the work rule of the control signal ; second, take out some right control signal ; then for dealing with the problem of vtr in use for watch - control, i choose some right components to design the uniform control system for many special vtr with protel software. it mainly includes the following functions : operation functions of all vtr ( for example : power, play, ff, rew, stop, rec, eject, fwd, rwd, sp, lp ) was controlled by line at the same time ; in, the process of recording, when the tape walks to the end or stops by itself, the system gives an alarm and shows the number of the wrong vtr ; in the process of recording, the system gives an alarm and shows the number of the wrong vtr when the video signal from vidicon is losed ; the system controls all vtr to record on the non - working time when there is something wrong in the guarding section ; the system controls the video from vtr to switch to right monitor

目前，用在監控場合的業務用錄像機普遍缺乏一個統一的控制及檢測報警系統，這就導致了操作的不方便和出現了故障用戶不知道，降低了監控系統的可靠性，為此，我首先對華錄松下生產的k機芯的錄像機伺服原理進行仔細分析，找出各個伺服控制信號的控制變化規律；然後從中選出合適的控制信號；針對目前錄像機在實際監控使用過程中存在的問題，選用合適的元器件；運用protel繪圖軟體，設計了這個多臺業務用錄像機的統一控制系統，她主要包括以下功能：錄像機操作功能（如power play ff rew stop rec eject及正尋反尋帶速設定等）的統一線控控制功能；磁帶在記錄過程中，磁帶到頭和磁帶自己「偷停」的報警，並要能顯示出具體是哪一臺錄像機；在記錄狀態下，攝像頭輸入信號丟失報警，並要能顯示出具體是哪一臺錄像機；在休息或其他不需要記錄時，一旦警戒區有情況，則控制所有機器自動進入錄像狀態的功能；從錄像機輸出的監控圖像信號對監視器的切換功能。

Evaluating concrete surface by use of fwd and design of layer

評價舊混凝土路面及加鋪層設計

From here follows the success story of the fwd concept ( understeering )

前輪驅動（轉向不足）概念的成功就在於此。

Fwd - our success story

彎沉儀-我們成功的故事

Fwd front wheel bearing tool

啤呤拆裝工具組

Fwd four wheel drive

四輪驅動

We need armatures. please fwd us a price list along with list of products availible. thanks

我們需要摩托車的頭盔，請廠家聯系我們

The falling weight deflectometer ( fwd ) is used to evaluate the effectiveness of the impact compactor

摘要將落錘式彎沉儀（ fwd ）成功地用於路基沖擊壓實效果的檢驗。

When watching an instant replay, you can use the arrow keys to fwd / rew / pause / reverse the replay

當觀看一個即時回放時，你可以使用箭頭記號鍵來使錄象往前快進/往後快退/暫停/倒退。

We need clutch disc. please fwd us a price list along with list of products availible. thanks

我們需要汽車離合器的生產廠家，希望可以跟廠家建立長期合作的關系，請生產廠家盡快的與我們聯系

A new mechanistic - empirical based on fwd procedure is developed in this paper according to the information from the other country and our own

參照國內外有關資料，建立了以fwd彎沉為基礎的力學經驗罩面設計方法。

The typical relationship between void and deflection is given, which makes it possible to apply fwd to quick void detection

作者給出了脫空尺寸與彎沉典型回歸關系式，從而能夠利用fwd對水泥混凝土路面板下脫空進行快速評定。

Abstract : based on research and application of fwd in roads, the author analyzes and presents seven practical techniques of fwd

文摘:在研究現有國內外技術成果的基礎上，結合在道路量測上的實踐，分析、總結了落錘式彎沉儀的7個應用領域。

The research purpose of this paper is on the thickness design of strengthening asphalt overlays, and the research way is based on analyzing the using of falling weight defiectometer in the area of pavement design and analyzing the priority of fwd - this kind of nondestructive deflection testing equipment, the emphasis is using of the testing results and research production of fwd in overlay design. the mainly research results includes the following aspects : 1. describing all kinds of overlay design procedures and its advantages and disadvantages in detail, especially the overlay procedure used in our country ' s pavement design criterion

本論文的研究對象是針對結構性補強型瀝青混凝土罩面進行厚度設計，研究思路是以落錘式彎沉儀（ fwd ）在路面工程設計領域的應用為根本目的，在分析fwd這種無損彎沉測試設備先進性的基礎上，結合對各種瀝青路面罩面設計方法的分析，著重研究了如何將fwd的檢測及分析成果應用於瀝青路面罩面設計方法中去。

Imposing on the abundant fwd test data, a newly pavement intensity assessment standard is come into being. recurring to the program evercalc5. 0, the common rules of backcalculation modulus are introduced, moreover, the influence of instrument measurement error and input parameters are construed. utilizing the characteristics of deflection basin, so that it can assess the intensity of whole pavement structure

通過對豐富的fwd檢測數據的分析，提出了全新的路面結構強度評定標準；藉助evercalc反算程序，介紹了模量反算的一般規律，分析了儀器測量誤差和輸入參數對反算結果的影響，利用彎沉盆的幾何特性對路面的整體強度進行評價，並建立了各結構層動模量與靜模量間的相關關系。

Dynamic modulus of layers is backcalulated by sidmod program with the deflection basin measured by fwd. static modulus is determined based on benkelman beam and plate bearing data. applicability of different devices in modulus calculation is summarized. the research results of this dissertation prorided the experimental and academic basis for the spread of fwd

用fwd測得的彎沉盆計算各結構層的動模量，用貝克曼梁和承載板測得的中心彎沉計算靜模量，分析了不同設備與方法在進行模量反算時的適用性。

Chapter three the dynamical performance of the pavement load has been analyzed. the dynamical response characteristic and the dynamical time rule of fwd loads of the multilayer elastomer system pavement structure under the active loads have been investigated. the respond rules of the pavement to the fwd loads has been demonstrated and fitted

第三章對路面荷載的動力特性進行分析，研討在動載作用下多層彈性體系路面結構的動力響應特性及fwd荷載的動力時程，並對fwd荷載對路面動力響應規律進行擬合和論證。

Fwd, benkelman beam and plate bearing tests were conducted on subgrade layer, subbase layer, base layer and surface layer of one selected pavement during construction in 1998. correlations between defections measured by three different test devices have been established through deflections comparison and analysis

為了研究貝克曼梁、承載板和fwd三種彎沉檢測設備在路面彎沉檢測上的相關性，我們在選定的試驗路段上進行了彎沉檢測對比試驗。

Chapter two the various guideline systems of pavement evaluation and test investigation have been analyzed, and the influence characteristic of various test evaluation guideline on the pavement performance, and the test evaluation guideline standard and the evaluation control guideline have been presented. the synthesis evaluation methods of the asphalt pavement and the cement concrete pavement have been investigated separately. the mechanism and field appliance status of such nondestructive equipment as fwd and grp have been introduced detailedly

第二章對路面評價與檢測調查的各指標體系進行了分析，分析了各評價檢測指標對路面性能的影響特性，提出了檢測評價標準和評價指標，分別研討了水泥混凝土路面和瀝青路面綜合評價的方法，詳細介紹了路面無損檢測設備中fwd 、 grp的應用機理及近年來在路面檢測中的應用狀況。