例句與造句

1. Is it compound for aluminium bag and plastics compound the color printing bag to mould , used in the chemical industry , food , medicine , tea , high pure metal , original device of electron , precision type instrument , large - scale machinery and the vaccum packaging of the national defence highly sophisticated products or general packaging
   其一為鋁塑復(fù)合袋及塑料復(fù)合彩印袋，用于化工、食品、醫(yī)藥、茶葉、高純金屬、電子原器件、精密儀器、大型機(jī)械以及國(guó)防尖端產(chǎn)品的真空包裝或一般包裝。
2. It's difficult to find precision type instrument in a sentence. 用precision type instrument造句挺難的