span [spæn]

span的基本解释

n.

跨距, 指距, 全长, 跨度, 范围

• Over a short span of three years a surprising amount has been achieved.
• 在短短三年时间里，已经取得了惊人的成绩。

vt.

以手指测量, 跨越, 架设, 持续

• A bridge spanned the river.
• 一桥横跨该河。

span的同义词

n. reach · viaduct · expanse · distance · stretch · spell · extent · period · bridge · interval · measure

span所属的单词分类

Road / 道路 [60]

State Road  ·  interstate highway  ·  frontage road  ·  feeder road  ·  exit ramp  ·  entrance ramp  ·  country road  ·  traffic circle  ·  divided highway  ·  county road

与span相关的网络例句 [注：此内容来源于网络，仅供参考]

The mechanical behavior of Shape Memory Alloys material is tested, and the constitutive model of the SMA is established. A kind of SMA combined rubber isolator is developed, and the isolation effect of the SMA combined rubber isolator for long-span bridge and tall building structures is numerically simulated, from which the adaptive isolation performance and the self-restoring capacity of the SMA combined rubber isolator are verified. A kind of SMA damper is developed, the mechanical behavior of the SMA damper is tested, and the model of restoring force of the SMA damper is established. The theory and method of adaptive control based on the SMA damper for the long-span bridge are built, and the effectiveness and reliability of the adaptive control for the long-span bridge using the SMA damper are verified through numerical simulation and model test. The MRF-04K type magnetorheological damper is developed, the mechanical behavior of the MR damper is tested, and the model of restoring force of the MR damper is established. The theory and method of adaptive control based on the MR damper for the long-span bridge and tall building structures are built, and the effectiveness and reliability of the adaptive control for the long-span bridge and tall building structures using the MR damper are verified through numerical simulation and model test. In addition, the theory and method of sub-structural damage identification for long-span bridge are derived, the influence of soil-structure dynamic interaction on the seismic isolation and control effects with different isolation and control measures and the damage responses and the sliding base-isolation of large structures under the excitation of underground explosion are investigated.

试验研究了形状记忆合金材料的力学性能，建立了SMA材料的本构模型；研制了一种SMA复合橡胶隔震支座，数值仿真分析了应用SMA复合橡胶支座的大跨桥梁和高层建筑结构的隔震效果，从而验证了SMA复合橡胶支座的自适应隔震性能及其震后自恢复能力；研制了一种SMA阻尼器，试验研究了SMA阻尼器的力学性能，建立了SMA阻尼器的恢复力模型，建立了基于SMA阻尼器的大跨桥梁结构自适应控制理论与方法，通过数值仿真与模型试验验证了大跨桥梁结构SMA阻尼器自适应控制的有效性与可靠性；研制了一种MRF-04K型磁流变阻尼器，试验研究了MR阻尼器的力学性能，建立了MR阻尼器的恢复力模型，建立了基于MR阻尼器的大跨桥梁和高层建筑结构的自适应控制理论与方法，通过数值仿真和模型试验验证了大跨桥梁和高层建筑结构MR阻尼器自适应控制的有效性与可靠性；还建立了大跨桥梁结构的子结构损伤识别的理论与方法，研究了土-结构动力相互作用对不同隔震和控制措施的减震控制效果的影响以及地下爆炸波作用下各类大型结构的灾害响应与滑移隔震。

The researches show that self-stability span is synthetical reflection of surrounding rock stability, so sub-classification standard can be constituted based on it. Surrounding rock self-stability span can divide into long-term stability span, basic stability span, temporary stability span and instability span.

研究结果显示：围岩自稳跨度是围岩自稳性的综合反映，围岩自稳跨度可分为长期稳定跨度、基本稳定跨度、暂时稳定跨度和不稳定跨度。

Based on the present findings, it appears that all the Taiwan WAIS-Ⅲ working memory index, the single Arithmetic and the Digit Span subtests, and the span scores of the Digit Span subtest could adequately discriminate individuals without working memory impairment, but had poor sensitivity on detecting the patients who evidenced working memory impairment. Accordingly, it is suggested that clinicians should gauge the working memory index by a composite of the Arithmetic, the Digit Span, and the Letter-Number Sequencing subtests if possible. Otherwise, a caveat should be taken with care to interpret the working memory index, as estimated by a composite of the Arithmetic and the Digit Span subtests, because the chance of the increasing false negative rate becomes ineludible.

综合上述，显见WAIS-Ⅲ中文版中之工作记忆指数、单一算术及单一记忆广度分测验、或记忆广度分测验之各项广度值在区分患者有无工作记忆功能异常上皆拥有良好之区辨力，但对侦测工作记忆功能异常患者的敏感度普遍不佳，建议临床工作者应尽量取得算术、记忆广度、与数－字序列等三项分测验组合所估算之工作记忆指数；若在有限条件下，临床工作者仅能以算术与记忆广度两项分测验之组合所估算之工作记忆指数来评估受试者工作记忆，应留意假阴性比例上升的问题。

与span相关的网络解释 [注：此内容来源于网络，仅供参考]

span：跨度

连续的页面由一个"跨度"(Span)对象来表示. 一个跨度可以是已被分配或者是自由的. 如果是自由的,跨度则会是一个页面堆链表中的一个条目. 如果已被分配,它会是一个已经被传递给应用程序的大对象,或者是一个已经被分割成一系列小对象的一个页面.

span：跨距

在歌德建筑中,"柱"与"墙"的角色逐渐被分别出来,昔日厚重的承重墙,在歌德式教堂对垂直高耸空间以及大片玻璃花窗的需要下,出现了飞扶壁、肋柱等一组组排列的柱式系统,柱与柱之间产生了"跨距"(Span)的空间;在一栋巨大的歌德式教堂中,

span：跨越

如果选取"跨越"(Span),则可以使用在"间距"(Spacing) 框中指定的距离跨过所有选取的几何来切削截面. 将计算截面数目,并且会按"间距"(Spacing) 框中所指定的值等分各个截面. 在"出图"(Plot) 下,选取横截面的出图类型.

span：量程

(3)量程(span)标称范围两极限之差的模. 移(drift)测量仪器计量特性的慢变化. 应时间(response time ) 激励受到规定突变的瞬间与响应达到并保持其最终稳定值在规定极限内的瞬间,这两者之间的时间间隔.

span：abbr. statistical processing and analysis; 统计数字的处理和分析