The phrase "appears to be patchy" is correct and usable in written English.
It can be used to describe something that seems inconsistent, incomplete, or lacking in quality.
Example: "The report on the project's progress appears to be patchy, with several sections missing crucial data."
Alternatives: "seems inconsistent" or "looks incomplete."
"This is a crime which easily spills over across borders, therefore there is a great need for co-operation and information sharing between the countries, but so far in west Africa that cooperation appears to be patchy" said Mukundan.
In this area, food distribution is uneven and food appears to be patchy distributed (Figure 1).
Interestingly, homologs to the TvMULEs occur in other Trichomonad species, even though their distribution appears to be patchy.
Sequestration appears to be patchy within microvascular networks of each organ, but is more widespread in brain than retina.
Last year's Royal Society report ("Science and mathematics education: the transition to higher education") noted that the provision of physics A-level in schools across the UK appeared to be patchy, with an overall figure across the UK of 22% of schools not entering a single candidate; this also seems to tie in with a shortage of specialist teachers.
Although there remain several legitimate criticisms against SIS, such as the produced model can appear to be patchy, variograms can control two-point statistical measures, cross-correlation between multiple categories is not explicitly controlled, etc., we however opted for the algorithm for some specific reasons for which SIS is chosen over any other conventional techniques (Deutsch 1998).
First, the distribution of each sponge intron appears to be extremely patchy among animals, which suggests numerous independent losses for each intron.
The explanation appears to be that very scant, patchy loose bone or osteoid formed also around the control screws after 1 week, but then disappeared when resorption was not suppressed.
This appears to be related to the patchier, more dispersed distribution of food resources in Central America and the fact that there is less dietary overlap between the Central American squirrel monkey and the white-headed capuchin than between their South American counterparts.
It has become clear to the team developing and leading FH01 that service provision across the United Kingdom is very patchy and there appears to be significant geographical variation in the level of service the public can expect.
In the degraded photograph, streaks of color run down the right side of Assange's face in a patchy pattern; even in print, he appears to be looking through a screen.
