The phrase "are difficult to decode" is correct and usable in written English.
It can be used when discussing something that is hard to understand or interpret, such as messages, codes, or complex information.
Example: "The ancient texts are difficult to decode, requiring specialized knowledge and expertise."
Alternatives: "are hard to interpret" or "are challenging to decipher."
And even if an employee goes to the trouble of getting the numbers, they are difficult to decode.
"The Musharraf Mysteries" (editorial, Dec. 27) says that "Pakistani politics are difficult to decode" and that the immediate challenge is to "discover what is really going on there".
The medical records are difficult to decode because descriptions and interpretations of psychiatric symptoms occur within specific historical and geographic contexts.
Spider-silk proteins consist of very long strings of amino acids that are difficult to decode, and little is known of how spiders actually unravel them and spin them into threads.
This relation defines a space included between formal and informal that is fluid and ambiguous, characterised by processes that are difficult to decode, map or subdivide (Mehrotra 2008).
It's difficult to decode which is which, and they are often twenty or more miles apart.
Kelley's private language is difficult to decode but essential to the book, and so a determined reader must soldier on, grateful that "dunfords" is, at least, short by comparison with "Finnegans Wake".
As shown in Fig. 3, there are three MDCs and four closed-loop moving paths in the encoding structure, which would be difficult to decode.
In contrast, if the components of x p and x s are of comparable power levels, e.g., τ θ≈1, then the SIC decoding is limited by the mutual interference and it would be difficult to decode either of x p and x s.
It is difficult to decode the expected information z2(k) if we cannot subtract the self-information s1(k) from y1(k) when μ is unknown, due to the lack of CSI at S1. Therefore, we propose a three-step approach in the single-differential detection for TWR with carrier offsets: step 1, the self-information of μ s1(k) is subtracted from y1 k), the most important step in the whole detection procedure.
