换句话说，围绕着油沙的层层不确定因素，就像被其包于当中的油沙那样庞大。
The uncertainties surrounding the oil sands, in other words, are as big as the developments themselves.
织锦是一层层地以圆形的方式围绕地球的。
The tapestry is layered in a circular manner that surrounds earth.
本文围绕阻止生物膜形成这一主线，并采用层层静电自组装技术，构建了以下抗菌涂层。
The chitosan as an antibacterial agent and the heparin as an anti-adhesion agent were successfully deposited onto the aminolyzed PET by the layer-by-layer self assembly technology.
本文围绕阻止生物膜形成这一主线，并采用层层静电自组装技术，构建了以下抗菌涂层。
The chitosan as an antibacterial agent and the heparin as an anti-adhesion agent were successfully deposited onto the aminolyzed PET by the layer-by-layer self assembly technology.
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