The phrase "are only encountered" is correct and usable in written English.
It can be used to indicate that something is found or experienced exclusively in certain situations or contexts.
Example: "These rare species are only encountered in the remote regions of the rainforest."
Alternatives: "are found only" or "are seen solely".
Special attention is focussed on the phase equilibria involving olivine, plagioclase (i.e., troctolite), and liquid because a high proportion of erupted basalts carry these two phases as phenocrysts, yet the equilibria are restricted to crustal pressures and are only encountered by wide ranges of basaltic compositions at pressures less than 0.5 GPa.
Temperatures above 30°C are only encountered during the early afternoon when the monkeys are notoriously inactive [32].
It was only encountered at MLSS of over 40 g/l.
To ensure that this increment is only encountered once, taking inspiration from the power of synchronized inputs [12, 13], another reasonable strategy is to give a single big kick of size G, all at once, to the resting cell (Figure 1).
Statistically significant differences were only encountered in the ELISPOT assay for this time point when the 16 kDa and Ag85B stimulations were used (one-way ANOVA, p<0.05).
Sandbar sharks were only encountered in deep lagoon and outer reef habitats, and blacktip shark CPUE was highest in the deep lagoon.
In the modern drug discovery pipeline, assessments of the efficacy and toxicity of therapeutic agents are based on relatively homogeneous cell or animal models, and the heterogeneity issue is only encountered once the most expensive clinical trials are underway in human subjects.
Regulation of retail mark-ups was only encountered in Mali and Mozambique [ 19, 71, 72].
Discrepancies of identification were only encountered with 4 M. gordonae strains and 1 M. kansasii strain.
Notably, Turicibacter-assigned mreadseads were only encountered in the dataset B (3%).
Sequence variation was only encountered in 1 sample from Oxbøl in Jutland (no. AY776166).
