the Essentials of Design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)。 - The adventage and the flow sheet design of the vacuum powder sucking and conveyance system was introduced with the emphasis on desigh essentials.
介紹采用真空吸送物料的優(yōu)點(diǎn)及流程設計，重點(diǎn)介紹設計要點(diǎn)。
