Bucket excavator and Bucket-chain dredger

Bucket-chain dredger and bucket excavator are semantically related. In some cases you can replace phrase "Bucket-chain dredger" with "Bucket excavator", this phrases are similar.

Bucket excavator and bucket-chain dredger are semantically related. Sometimes you can replace phrase "Bucket excavator" with "Bucket-chain dredger", this phrases are similar.