The principles, design method and design process of varactor frequency doubler are presented particularly.

1、

A Study on the Calculating Method for Removal Coefficient of Passenger Trains on Double Track Railway with Automatic Block System

基于移动自动闭塞条件的列车运行仿真系统双线自动闭塞区段旅客列车扣除系数计算方法的探讨

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2、

Risk analysis and countermeasure to tunneling on close-spaced double track railway

近距离铁路复线隧道施工的风险分析及对策

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3、

Distribution of a harmful gas in double track railway tunnels

铁路双线隧道中有害气体分布规律的研究

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4、

Research of theory and method for train operation adjustment on double track railway lines

复线列车运行调整理论与方法的研究

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5、

Alignment Design and Overall Optimization Design for Double Track Railway

复线铁路的线型设计与整体优化

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6、

The Test Study of the Surrounding Rock Pressure Acting on the Composite Lining in Weak Rock of Nanling Double Track Railway Tunnel

南岭双线铁路隧道软岩复合式衬砌围岩压力的试验研究

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7、

Numerical Simulations of Air Pollution Concentration Inside Double Track Railway Tunnels

双线铁路隧道内空气污染浓度的数值模拟研究

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8、

Layout of double track curved bridge with different midway between tracks

线间距变化的双线铁路曲线桥梁布置方法

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9、

Spatial Vibration Response Analysis of High Speed Railway Double Track Bridge

高速铁路双线简支梁桥空间振动响应分析

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10、

The slowest growth for 18 months, which compared with 8.8 per in the same period a year ago, reflects aggressive monetary tightening by the Indian central bank as it tries to combat near double digit inflation and an uncertain global economy.

这是18个月以来最低的增长率，上年同期则为8.8%，这反映出印度央行大刀阔斧地收紧货币政策，以对付接近两位数水平的通胀率，同时全球经济形势不明朗。

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11、

Besides its effect on the economic relations, China's entry into WTO will exert impact on the legislative foundation and value of business law, and endow the business law with the double edge function of government intervention and intervening in the government.

在影响经济关系的基础上，入世还将对经济法的立法根据和价值选择产生影响，并要求经济法具有政府干预和干预政府的双刃剑功用。

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12、

As an unavoidable organizational behavior, the business organizational conflict has double influence ( negative and positive) upon the business development.

企业组织冲突是一种不可避免的组织行为。它对企业组织发展的影响具有二重性，即消极的、破坏性的影响和积极的、建设性的影响。

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13、

But the business tax results in double taxation, which increases tax burden of the modern services industry.

但营业税存在重复征税现象，加重了现代服务业企业的税收负担，并且服务企业的所得税优惠较少。

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14、

Additionally, it is a lot harder to found a business that will double your yearly profit when you make$ 250,000 a year than it would be if you make$ 50,000 a year.

此外，如果你的年收入为250000美元，你很难创建一家年利润翻番的公司。而如果你的收入为50000美元，实现这个目标则要容易得多。

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15、

The commercial business is growing double digits, right?

我们在埃及的业务正在以两位数增长，不是吗？

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16、

While either a call tree view or allocation view is being displayed in the generated report, on the developer menu, click profiler and then click noise reduction options.

当“调用关系树”视图或“分配”视图显示在生成的报告中时，在“开发人员”菜单上，单击“探查器”，然后单击“降噪选项”。

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17、

Added optional click noise to keyboards.

加上可选点击噪音键盘。

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18、

Users can edit the track information, or metadata ( click on a track and select Get info from the File menu), but it is both laborious and prone to error.

用户可在iTunes中编辑歌曲信息或元数据（点击一首歌曲，然后从文件菜单中选择获取信息），但这样做既费力又容易出错。

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19、

Select the track with the instrument settings you want to save, then click the track info button to open the track info pane.

选择您要存储其乐器设置的轨道，然后点按“轨道信息”按钮来打开“轨道信息”面板。

provided by jukuu

20、

On the review tab, in the tracking group, click the track changes image.

在“审阅”选项卡上的“跟踪”组中，单击“修订”图像。

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