They sat in a semi-open-air coffee shop, where he self-consciously ordered a Tiger beer and she shifted uncomfortably on the backless plastic stool with a round hole in the center of its seat.
在半室外的咖啡厅，他下意识的点了一杯老虎啤酒而她则很不舒服地坐在没有靠背，中间还有一个洞的凳子上。
2
Trent's plan is to grow freshwater algae in nutrient-rich waste water inside semi-permeable plastic membranes.
Trent的计划是将清水海藻种植在充满富营养废水的半透塑料薄膜里。
3
Since normal plastic theory is too complex, the membrane theory and the semi-membrane theory are adopted to establish the equilibrlm equations in plastic limit analysis.