另外，从冻土带和非冻土带及其蓄水砂石层中的地下水样品的分析情况来看，微量元素的含量也超出了其它地区的含量。
Additionally, samples from glacial and non-glacial sand and gravel aquifers consistently had more occurrences of trace elements in groundwater than samples from other aquifers.
简述了砂石路面扫浆养护法并分析影响扫浆保护层使用周期的诸项因素及注意事项。
Analysis is made on the influencing factors to the duration for usage of slurry protection tier on sandstone and given the countermeasures.
业内人士分析预测，加拿大油砂石油的产量在不久将会有更显著的提高，并可以补偿上其常规原油递减的产量。
Analysts predict that oil sands production and Coal bed methane development will increase significantly in coming years and offset the decline in Canada's conventional crude oil and gas production.
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