外汇20内阁是由15毫米杨木胶合板。
研究了用酚醛树脂浸渍的杨木单板作表板制造杨木胶合板模板的制造工艺。
The processes of manufacturing poplar plywood with PF impregnated poplar veneer as its outer ply were explored.
试制结果表明，采用文中提供的工艺及参数，可制得符合要求的速生杨木胶合板。
The test result shows that satisfied plywood with the fast-growing poplar as raw materials can be made by adopting the presented technology and parameters.
试验结果表明，落叶松胶合板比椴木胶合板、桦木胶合板、水曲柳胶合板和杨木胶合板的耐老化性能和耐水性能强，并且强度较高。
The results show that larch plywood is better than linden plywood, birch plywood, ash plywood and Poplar plywood in ageing-resisting, water-resisting and with high intensity.
介绍了洞庭湖区引种的黑杨派南方型杨木的特性，根据原料特性设计了胶合板制造工艺并对工艺参数进行优选。
Based on the characteristic of Populus Trichocarpa CV. "Southern" planted in Dengting Hu area, a plywood manufacture technology was worked out, optimized and tested.
介绍了洞庭湖区引种的黑杨派南方型杨木的特性，根据原料特性设计了胶合板制造工艺并对工艺参数进行优选。
Based on the characteristic of Populus Trichocarpa CV. "Southern" planted in Dengting Hu area, a plywood manufacture technology was worked out, optimized and tested.
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