design of the main points的用法和樣例：
例句
- Keys to technology and die design of stamp-ing of Al alloy profile have been introduced.
介紹了鋁合金型材在沖壓加工時(shí)的工藝特點(diǎn)和模具設計要點(diǎn)。 - This paper pointed out some considerable questions on designing double towel cloth,and processing design keys of weaving.
提出在設計雙層毛巾織物時(shí)應考慮的問(wèn)題以及在織造過(guò)程中的工藝設計要點(diǎn)。
