英语释义

1. the act of sailing a ship nearer the wind

2. the forward edge of a fore-and-aft sail

3. to turn the head of a ship toward the wind

片语

luffing derrick俯仰式吊桿

luffing gear吊桿倾角调节器

unlevel luffing[机]

luffing motor吊桿俯仰电动机

luffing speed变幅速度

screw luffing螺桿变幅

level luffing[机] 水平变幅

hydraulic luffing[机]

luffing winch俯仰式起重机；变幅绞车

英汉例句

• a compound algorithm of genetic annealing is designed for optimizing the luffing mechanism locus of a plane link by means of random optimal algorithm, genetic and annealing algorithm.

  利用随机优化算法、遗传法和模拟退火法的优点设计了一套遗传退火混合优化算法，并将其应用于平面连桿变幅机构轨迹复演的优化。

• double step drum is an integral drum with stepwise flanges and double step sections. it allows the multiple layer rope winding in non-operating portion of luffing mechanism to make drum shorter.

  双阶梯卷筒是一种带有阶梯法兰盘和双阶梯截面的综合式卷筒，可在变幅机构的非工作区段使钢丝绳多层卷绕，以缩短卷筒长度；

• at present, the research of dynamic characteristics on luffing mechanism of crawler crane is relatively lacking at home and abroad, and is not enough overall.

  目前国内外对于起重机变幅机构动态特性的研究比较少，而且研究不够全面。

• verb: luffing refers to a shaking or movement of the leading edge of a sail when it is not in trim.

  动词1：luffing指的是当帆不平整时，帆的前缘的摇动或移动。

• lifting machine, luffing , rotary and other organizations, all of the motor-driven.

  该机的起升、变幅、回转、等机构，全部采用电机驱动。

• reaserch the relations between at luffing course of horizontal movement and jib system organization's static stressing, as well as to improve the analyses means of design software of these same crane.

  探寻物品在变幅过程中水平移动与臂架系统结构静态受力之间的关系，研究臂架自重平衡系统的设计与臂架系统动力响应之间的关系以及对改善该类门机的设计软件的分析手段。

• the double rocker mechanism(with back rocker driving) is used to luffing operation of floating crane. it has high productivity and transfer flexibility.

  这种双摇桿变幅机构可用于浮式起重机的带载变幅作业，具有高的生产率和作业灵活性。

• this paper applies fuzzy set theory to the optimum design of weight-balance system of the four-link luffing mechanism of portal cranes.

  将模糊数学应用到门座起重机四连桿变幅机构平衡重系统多目标优化设计中。

• a brand-new jib-bridge luffing system of crane is brought out based on analysis of the limitation to handle containers of the portal crane.

  在分析门座起重机用于集装箱装卸作业的局限性的基础上，提出一种新型的起重机变幅系统。

• it changes working radius usually by luffing jib.

  通常多采用俯仰臂架的方法来实现工作幅度的改变。

• a new-type quayside container crane with jib-bridge luffing system as the main working part is brought out.

  提出一种以臂桥架变幅系统为主要工作机构的岸边集装箱起重机。

• a boat cannot sail directly into the wind; attempting to do so is called luffing .

  乘船航行不能直接进入风；试图这样做是所谓的变幅。

• to a certain extent luffing crane, lifting the lifting only allowed, if overweight, attention has danger of tipping.

  对于变幅起重机，一定的幅度只允许起吊一定的吊重，如果超重，起重视就有倾翻的危险。

• a new method of calculating the driving power of portal crane luffing mechanism is introduced in this paper.

  本文介绍了一种计算门座起重机变幅机构驱动功率的新方法一瞬心回转功率法。

• combining the design of portal crane luffing mechanism, this paper sets up the math model of the luffing system of the brachial-bridge container crane with combined compensating pulley.

  本文以新型的臂桥架岸边集装箱起重机变幅机构组合式货物水平位移补偿系统的模型为研究对象，建立了吊重水平落差最小的数学模型。

• this is electro-hydraulic heavy duty type level luffing type deck crane.

  辻产业的吊机是电动-液压驱动型水平变幅式重载型克令吊。

• this paper introduces an optimal method for designing the weight-balance system of the four-link luffing mechanism.

  本文介绍了一种四连桿变幅机构平衡重系统的优化设计方法。

• a luffing extension-jib was installed on top of the carriage with a telescopic nacelle.

  在方舱上安装由液压系统控制的可升降伸缩旋转吊臂；在吊臂顶端安装有可折叠吊篮。

• this paper presents the main types and features of luffing mechanisms of goose neck jib lorry loading cranes and proposes design requirements for 304304 type luffing mechanism.

  介绍了随车起重机变幅机构的主要形式和特点，提出304304型变幅机构在设计时的要求。

• the mentioned method is applied to design of pulley block compensation in luffing mechan ism and the results show that the method is feasible and effective.

  在滑轮组补偿变幅机构稳健优化设计中加以运用，结果表明该方法是有效的和可行的。

• the optimal mathematical model for the luffing mechanism of a plane link is constructed.

  构造了平面连桿变幅机构的优化数学模型。