The lack of middle-class income growth during that span is "the defining issue of our time," Mr. Summers has said, in a tacit admission that liberals were ahead of him on this issue.
萨默斯表示，在这段时期，中产阶级收入增长的缺失是“我们这个时代最重要的议题，”这事实上是承认，自由派在这个议题上要更胜他一筹。
To extend the frame and create an adjustable platform, Teal designed a long span in the middle of the bike that was light and rigid.
为了扩展车架并打造一个可调节平台，蒂尔在自行车中间设计了一个既轻且硬的长轴。
You might want to include the Google search control in a span element, right in the middle of the rest of your app's content, rather than off to the side in a div.
还可以将Google搜索控件包括在一个span元素中，放在其余的应用程序内容的中间，而不是放在侧面的一个div中。
The paper discussed proportion between side span and middle span in three spans prestressed continuous box beam bridge.
本文对三跨预应力连续箱梁桥的边跨与中跨比例问题进行了初步的探讨。
The results indicate that the vertical bending moment of girders, especially the girders of middle span, are influenced more obviously by coherence effect than by local site effect.
研究结果表明：相干效应对主梁纵向弯矩影响比较大，尤其是中跨部位；而局部场地效应相对影响较小。
The paper analyzed the problems of common structure and design for middle and small span bridge, proposed some advice from standards, design methods and common structure characteristics etc.
分析了中小跨径桥梁常用结构及设计中存在的问题，针对问题从规范标准、设计方法、常用结构特点、荷载标准确定等方面提出了建议。
The variation of sectional area of girders has influence to the deflection of cable-stayed Bridges at the middle of span and forces of cables anchored at the end of side span.
主梁截面面积变异对斜拉桥跨中挠度和尾索索力具有显著的影响。
System of horizontal swivel structure, construction scheme, construction method and construction of middle-span closure are expounded in the paper.
对该桥水平转体结构体系、施工方案、施工工艺、跨中合拢施工进行了详细的阐述。
The rule about impact coefficient has increased trend with increasing of train velocity in section of middle of span.
随着列车车速的增加，跨中动力系数有增大的趋势。
In this structure, the natural bridge support bar in the middle of two free pile after a wide span can be achieved.
在这种结构中，天然支架桥在两个自由杆的中间加桩后可达到很宽的跨度。
The time span of middle-term optimization model equal foreseeable period of runoff forecasting (3 to 7 days), and the optimization period is one day.
中期模型优化的时间跨度等于中期入库径流预报的预见期（3-7天），优化时段为一天。
In the time span, the essay also mainly defines in the western music history the later period of "the middle ages".
在时间跨度上，也主要被限定在西方音乐史上的“中世纪”晚期。
The main causes of bottom flat crack are analyzed, mainly including radial force generated by closure strands stretching in middle span , non-structural elements and construction effects , etc.
分析了导致底板崩裂的主要原因，主要包括跨中合龙束张拉时产生的径向力作用、非预应力钢筋构造因素及施工影响等；
This result suggested that the frozen treatment for primary hepatic carcinoma in middle and advanced stage has definite palliative effect to relieve the symptoms and to prolong the live span.
结果说明，冷冻治疗中晚期肝癌有一定临床疗效，目前看来可以缓解症状，延长生命。
Cantilever bridge piers in the use of long-span Bridges the middle it is usually not feasible in the bridge structure.
悬臂桥在利用中间桥墩的长跨距桥中它通常是不可行的桥梁结构。
The axially moving string system is divided into two spans, i. e. a controlled span and an uncontrolled span, by a tensioner which is located in the middle section of the string.
此系统被作动器分成未控和受控两部分，通过作用在作动器上的控制力对受控部分进行主动控制。
The axially moving string system is divided into two spans, i. e. a controlled span and an uncontrolled span, by a tensioner which is located in the middle section of the string.
此系统被作动器分成未控和受控两部分，通过作用在作动器上的控制力对受控部分进行主动控制。
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