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sextant
六分仪
用来测量远方两个目标之间夹角的光学仪器。通常用它测量某一时刻太阳或其他天体与海平线或地平线的夹角﹐以便迅速得知海船或飞机所在位置的经纬度。
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sextant
六分仪
用来测量远方两个目标之间夹角的光学仪器。
Physics
sextant
六分仪,纪限仪{天}
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sextant
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insect-resistant and herbicide-tolerant genetically modified maize Bt176
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insect resistant breeding for forage plants
insect-resistant genetically modified corn GK12
insect-resistant genetically modified corn JINMIAN38
insect-resistant genetically modified corn MON15985
insect-resistant genetically modified corn MON531
insect-resistant genetically modified cotton SGK321
insect-resistant genetically modified maize MIR162
insect-resistant genetically modified maize MIR604
insect-resistant genetically modified maize MON810
insect-resistant genetically modified maize MON863
insect-resistant genetically modified maize MON89034
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insect-resistant genetically modified rice Huahui1
insect-resistant genetically modified soybean MON87701
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