非常规石油拯救不了我们：即便启动开采加拿大沥青砂这一应急方案，到了2030年每天也只能供500万桶。
Unconventional oil won't save us: even a crash programme to develop the Canadian tar sands could deliver only 5m barrels a day by 2030.
本文介绍了对不良土质进行掺砂改良的施工工艺和质量控制，供其它公路建设工程参考。
The construction technology and quality control of the mixing technique are introduced, which can give references for other highway construction.
方法以树棒为载体 ，粗砂为基质 ，纯猪苓菌种、纯猪苓菌丝形成菌核伴生菌和蜜环菌为供试菌株 ，采用花盆栽培方法。
METHODS The pure companion fungus, strain of G. umbellata and Armillaria mellea on tree trucks were inoculated in flowerpots and covered by sandy soil.
方法以树棒为载体 ，粗砂为基质 ，纯猪苓菌种、纯猪苓菌丝形成菌核伴生菌和蜜环菌为供试菌株 ，采用花盆栽培方法。
METHODS The pure companion fungus, strain of G. umbellata and Armillaria mellea on tree trucks were inoculated in flowerpots and covered by sandy soil.
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