The phrase "almost the same which" is not correct in standard written English.
It is awkward and unclear, and it would be better to rephrase it for clarity and grammatical accuracy.
Example: "The two designs are almost the same, which makes it difficult to choose between them."
Alternatives: "nearly identical to" or "almost the same as".
The optimal efficiencies of the recuperated and non-recuperated systems were almost the same, which provides flexibility in selecting a system configuration.
The PCR efficiency for the model DNAs with DHU or T or C modification were almost the same, which demonstrated that DHU could be read through as a regular base and would not cause PCR bias.
It is also demonstrated that the mean penetration resistance of concrete materials with unconfined compressive strengths ranging from 75 MPa to 150 MPa is almost the same which may have serious implication for the design of concrete targets against projectile penetration.
The results of two algorithms are almost the same, which proves the correctness of the proposed method.
The heat transfer area increment for every nanoparticle radius reducing by half are almost the same, which causes the same Nusselt number enhancement ratios at Ra = 103.
During this period, the local times covered by the three spacecrafts were almost the same, which decreased from 0100 to 2100 LT for the descending node.
More than 30 years later she looks and sounds almost exactly the same, which sort of confuses the issues of what we're being sentimental about.
Although the main motivation of using Google Map (or any form of map) is almost always the same, which is to get to my destination, Google Maps in particular can help me achieve different goals in different conditions.
Design experts I spoke with noted that many of the devices we use today look almost exactly the same, which explains the emphasis on the software that goes into that interface.
Lord Summer said "There is no room for documents which are almost the same or which will do just as well".
All of the inverted OSCs with different buffer materials to which our design rule was applied had almost the same ρc, which was at least 20 times lower than that with no buffer layer.
