?开卷机
...开卷机 abhaspel; ablaufhaspel; abrollhaspel; abwickelhaspel; carousel; coil holder; decoiler; decoiling machine; decoiling unit; feed reel; pay off reel; payoffreel; reeler; swift; uncoiler; uncoiling machine; uncoiling reel; uncoiling unit; unwind reel; unwinder; unwinding coiler 开卷考 open-book exam .