1·The wings are made of a polythene film stretched over a carbon fiber frame.
机翼是由铺在碳纤维框架上的聚乙烯薄膜制成的。
2·Little white markers cut out of polythene bags are still planted along the narrow rubble lane to the cemetery.
从聚乙烯袋子上剪下的白色小标记依然安置在通往墓地的狭窄碎石小路上。
3·In contrast, the hundreds of miles of polythene sheeting used to produce tomatoes in Spain can be seen from space.
相比之下，人们可以从太空中看到在西班牙数百英里长的用来种植西红柿的聚乙烯薄膜。
4·Three-dimensional flow field in the elutriator of polythene packed system is simulated.
模拟了聚乙烯填充体系淘析器内的三维流场。
5·Therefore, if the foreign plants adopt plastic extrusion molding for over-voltage crosslinked polythene cable, they currently adopt "plastic extrusion sulfuration by layers" method.
因此国外厂家对超高压交联聚乙烯电缆如果采用“挤塑模铸法”，目前均采取“分层次挤塑硫化”工艺方式。