adj.更硬的
The needle catching problem is an old issue that we have ameliorated with stiffer needles and an improved corner cutting procedure, but it hasn't been fully solved, apparently. 針頭抓緊的問(wèn)題是個(gè)老問(wèn)題了，我們用更硬的針頭改善并改進(jìn)了切割步驟，顯然還沒(méi)有完全解決。
