specified standards造句

For the first time they were required to attain air quality of specified standards, within a specified period of time.

However, this demand for better interoperability in the wake of increasingly frequent multinational operations hinders the establishment of specified standards.

Article 19: Building of dam, sluice gate, bridge, wharf and other structures blocking, crossing or bordering a river channel; laying pipelines or cables across a river, must comply with State-specified standards for flood control and navigation as well as other related technical requirements.