例句與造句

1. Air and soil quality - measurement of atmospheric deposition of organic trace substances ; funnel adsorber method - part 2 : determination of polynuclear aromatic hydrocarbons
   空氣和土質(zhì).有機(jī)痕量物質(zhì)的大氣沉積物測(cè)量.漏斗吸收
2. Air and soil quality - measurement of atmospheric deposition of organic trace substances ; funnel adsorber method - part 1 : sampling devices ; requirements , installation , application
   空氣和土壤質(zhì)量.大氣有機(jī)痕量物質(zhì)沉積物的測(cè)量.漏斗
3. It's difficult to find trace substance in a sentence. 用trace substance造句挺難的