Of the 14 private airlines established since 2004, only four are still in business.

2004年来成立的14家民营航空公司中，只有四家仍在运营。

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Its use has been established since 1976 after trials showed that the standard three-drug chemotherapy cocktail improved survival rates.

在试验表明含三种药物的标准鸡尾酒化疗能够提高存活率后，其应用也自1976年开始确定。

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The mathematical model for determining the optimal quantity of shear wall is thus established since the objective function and constraint conditions are formulated.

在表达了目标函数和约束条件的式子以后，建立了确定剪力墙最优数量的数学模型。

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He is only the second African to win the prize since it was established in nineteen eighty-six.

VOA: special.2009.06.16

Since the connection with the poker chips is established through classical conditioning, sooner or later by that logic the poker chips would lose their power to serve as reinforcers.

因为与扑克筹码有关的联结,是通过经典条件作用建立的，所以按照这种逻辑,扑克筹码迟早会失去强化物的作用。

耶鲁公开课 - 心理学导论课程节选

And that is the whole point of the exercise." Since Africa Command was established last year, critics have argued the purpose of the command is to militarize American foreign policy on the continent.

VOA: standard.2009.10.20

Advising a local investor in MEDIA industry, a local language Radio, Muga-FM, was established since 2005 through leadership of ACRI.

UNESCO: Patrimoine culturel immat��riel

If you hold any of the GM debt issues, you may have an optimal time to sell these after the stock value has been established since the debt holders will be getting stock once the bankruptcy has been confirmed.

FORBES: Sell Into Rallies And Thank Politicians

The RS line has been in a well established downtrend since 2010.

FORBES: 3 High-Yield Disasters