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- invertible sheaf 可逆层
- She catch the insect by invert her cup over it. 她把杯子倒扣在昆虫上，将它逮住了。
- He drew a sheaf of papers from his breast pocket. 他从上衣口袋里抽出一札文件。
- The speaker had a sheaf of notes on the desk in front of him. 演讲者在他面前的桌子上放着一叠笔记。
- He brandished a sheaf of documents. 他手里挥舞着一扎文件。
- He searched for and found a sheaf of papers in cabinet. 他在柜中寻找到一扎文件。
- Are Infinite Dimensional Spheres Invertible? 无限维球面可逆吗？
- He waved a sheaf of documents at me. 他手拿一叠文件朝我晃了晃。
- He draw a sheaf of papers from his breastpocket. 他从上衣口袋里抽出一札文件。
- He drew a sheaf of papers from his breastpocket. 他从上衣口袋里抽出一扎文件。
- He drew a sheaf of papers from his breast pocket . 他从上衣口袋里抽出一扎文件。
- The chair be invert on the table . 椅子倒放在桌子上。
- He draw a sheaf of papers from his breast pocket. 他从上衣口袋里抽出一札文件。
- Place a plate over the cake tin and invert it. 在蛋糕烤模上盖一个盘子，然后将其翻倒过来。
- Invert the differential case in the vise. 在虎钳中翻转差速箱。
- Alternatively, we may invert the file. 换一种方法，我们可以将此文件倒排。
- If you invert "I can", you have "can I". 如果你把I can两词前后颠倒一下, 就成了can I。
- Invert on plate, gently lift off mould. 扣在盘子上，轻轻地拿掉模子。
- This essentially implies that the presheaf is a sheaf. 这实质上蕴含着预层是一个层。
- A sheaf of loose papers used to fill a notebook or binder. 活页纸用来填在笔记本中或活页簿中的活页纸
