Semiconductor coolers are usually used in medium low temperature on account of their material limit.

半导体制冷器由于材料限制，主要应用于200 K左右的中低温领域。

youdao

Poor mechanical property of single macromolecule polymer material limit its clinical application.

单纯的聚合物高分子材料，由于力学性能低，使其应用受到限制。

youdao

Then, the only limit will be how much plant material is available (see article).

ECONOMIST: The future of energy

Until now, if a developer was granted planning permission they had to start the build within five years but once a "material start" had been made there was no time limit on its completion.

BBC: 'Eyesore' at former Strand hotel site being demolished

The sheer scale of the task facing Ford could also limit the effectiveness of its plans to stamp out smut, sexist and racist material.

BBC: The problems of finding filth