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关注:1
2013-05-23 12:21
求翻译:Upon hatching, L1 penetrate the caecum and proximal colonwall, dwell in the epithelial layer and undergo threemore moults to L2 (9–11 days p.i.), L3 (17 days p.i.) and L4 stage (22 days p.i.)是什么意思?![]() ![]() Upon hatching, L1 penetrate the caecum and proximal colonwall, dwell in the epithelial layer and undergo threemore moults to L2 (9–11 days p.i.), L3 (17 days p.i.) and L4 stage (22 days p.i.)
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