The film-shaped adhesive also includes a substrate (A) and a second sticky-agent layer (B).
上述薄膜状粘结剂进一步包括基材（A）和粘着剂层（B）。
The timed release pellets consist of 5 laminar layers from the center to the outside :the core, the drug layer, the swelling agent layer , the block layer and the controlled layer .
该脉冲微丸由5层结构组成，从内而外分别是丸芯、药物层、溶胀层、阻滞层和水不溶性控释层。
Experimental study shows that the damage rate of fracturing fluid to fracture surface is between 31. 84% and 36. 28%; the damage rate to propping agent layer is between 29. 27% and 30. 04%.
针对太2气层的实验研究表明，压裂液对裂缝壁面的伤害率平均在31.84%- 36.28%之间，压裂液对支撑剂层的伤害率平均在29.27%—30.04%之间。
The prototype has three layers: the client layer, the agent layer and the server layer.
本系统采取三层体系结构，分别是客户端，中间代理层和分布的服务器层。
The prototype has three layers: the client layer, the agent layer and the server layer.
本系统采取三层体系结构，分别是客户端，中间代理层和分布的服务器层。
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