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松; 松树式天线阵; 水平偶极子天线阵; 松树式〔设有定向反射器的水平偶极子〕天线阵 | |||
松树马尾松,Pinus massoniana Lamb.,松科 | |||
松树 | |||
松树呢; 松树呢一种坚牢厚实缩绒的毛呢 | |||
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松树状花纹〈压延薄膜缺陷〉 |
pine tree : 23 phrases in 8 subjects |
Air defense | 2 |
Architecture | 2 |
Chemical fibers | 1 |
Desert science | 1 |
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Foreign trade | 1 |
Metallurgy | 8 |
Technology | 7 |