0 a light, usually thin, soft plastic, often used for making bags or for keeping things dry or fresh -- 聚乙烯
He adopted the use of old polythene for all further compost baskets he made.
The four replicate beakers of similar treatment solution were placed in a small plastic tray which was then kept in a tightly closed polythene bag.
All samples were immediately enclosed in polythene bags to prevent dehydration and brought to the laboratory.
Large polythene bags were used to pot seedlings from the start to avoid transplanting into larger pots during the experimental period.
Leaf samples were immediately brought to the laboratory in polythene bags.
The dishes were stacked in plastic trays with a saturated cloth above and below, enclosed in a polythene bag.
This pressure enhancement can be further increased by using low density polymer foam in place of normal polythene.
The stocking was put in a polythene bag fixed to the trap through a similar tubing, 20 cm long.
