Sentence examples for systems have not from inspiring English sources

spring mass systems have not yet appeared.

These systems have not reasonable efficiency.

However, these grading systems have not been validated.

Existing HANC systems have not simultaneously addressed these two issues.

Unfortunately, school aid systems have not kept up.

Questions about the security of voting systems have not been allayed.

There have also been delays in agreeing on standards, and many systems have not worked reliably.

So far, electronic stability-control systems have not found similar success in the American car market.

"Rival search engines and mobile operating systems have not been able to compete on their merits.

Improvements in drive systems have not eliminated the need for specialized winter tires.

The few advertisers that have tried these systems have not yet given up on them.