用“banned substances”造句大全，banned substances造句
Thereportsaidthatscientistsinterviewedbythecommissionsaidtheirattemptstodeveloptestsforbannedsubstances"werestymiedbylatedecisionsandaseeminglackofwillatthehighestlevelsoftheIOC."Horsesarenotraiseda...
用“chemical substances”造句大全，chemical substances造句
makealkaline,asofchemicalsubstances.testingmethodsforresistanceofadhesivebondstochemicalsubstancesFoodcontainsmanydifferentchemicalsubstancesthatourbodyneeds.disperseinamediumintoacolloidalstate;ofche...
用“hazardous substances”造句大全，hazardous substances造句
Avoidhazardoussubstancesandchemicals.Environmentalprotection,nomercuryandotherhazardoussubstances.Yetallofthesehazardoussubstancesposelittleriskifusedproperly.and(c)damagesto"naturalresources"result...