搜索: 资料名称 作者 主题 系列 图书编目号码 起始字母为: 10 20 30 50 100 每页 < 前 10 个标题 后 10 个标题 > 浏览标题 # Inventions 168 SEE ALSO: Research, Industrial 6 SEE ALSO narrower term: Technological innovations 188 SEE ALSO narrower term: Technology transfer 2 Inventions -- Africa. 1 Inventions -- Africa -- Juvenile literature. 1 Inventions -- Antarctica -- Juvenile literature. 1 Inventions -- Arctic regions -- Juvenile literature. 1 Inventions -- Asia -- History -- Juvenile literature. 1 Inventions -- Asia -- Juvenile literature. 1 Inventions -- Australia -- Juvenile literature. 1 Inventions -- Biography. 3 Inventions -- Canada. 1 10 20 30 50 100 每页 < 前 10 个标题 后 10 个标题 >