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von_weiqiang木蟲(chóng) (正式寫(xiě)手)
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[求助]
求三篇?dú)W空局(ESA)報(bào)告,每篇30金幣。。。
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在ESA官網(wǎng)上找了半天發(fā)現(xiàn)不會(huì)查報(bào)告啊,還有什么渠道能下載到的,多謝大神。 Experimental exhaust plume and contamination investigation Trinks,H. Bindemann,I. ESA/ESTEC Contract No. 5596/83/NL/PB(SC), Final report, Nov 1985 Phase 2: Experimental investigation on plume contamination and surface effects Trinks,H. Bindemann,I. ESA/ESTEC Contract No. 6559/85/NL/PH(SC), Final report, April 1987 The lifetest of UK-10 ion thruster cathodes and neutralizers:implications for facility design Simpson. ESA SP-398, Aug. 1997 |

至尊木蟲(chóng) (知名作家)

木蟲(chóng) (正式寫(xiě)手)

至尊木蟲(chóng) (知名作家)

木蟲(chóng) (正式寫(xiě)手)

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