However, technetium's chemistry allows it to form anions (pertechnate, TcO) that are relatively mobile in the environment.
Because I is long-lived and relatively mobile in the environment, it is of particular importance in long-term management of spent nuclear fuel.
The margins surrounding a shield generally constitute relatively mobile zones of intense tectonic or plate-like dynamic mechanisms.
Archaeologists recognize a complex of inter-related and relatively mobile cultures living on the Eurasian steppe, part of which protrudes into Europe as far west as Ukraine.
Polychaete worms comprise over three-quarters of this ray's diet by volume; it favors errant polychaetes, which are relatively mobile and generally found buried shallowly in the sediment.
The population in Kameyosek is relatively mobile.
Polychaete worms, mostly of the relatively mobile, shallowly buried "errant" type, are a major secondary food source.
Studies have shown that unemployment rates statistically correlate to measured migrations in the EU (a relatively mobile society).
The population of the neighbourhood is relatively mobile.
A typical client would be a relatively mobile and independent older person with a chronic medical condition requiring daily medication.