main designing point的用法和樣例：
例句
- The key points in designing the mechanism of automatic revolving de-threading are stated in detail.
重點(diǎn)闡述自動(dòng)旋轉脫螺紋機構的設計要點(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)。
