The process is in accord with the features of cocoons spun by cultivated Yamamai silkworms.
项研究为我国天蚕茧缫丝生产提供了一项新工艺。
The process is in accord with the features of cocoons spun by cultivated Yamamai silkworms.
项研究为我国天蚕茧缫丝生产提供了一项新工艺。
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