In addition, Reports about magnetic X zeolites have not been previously reported because of the hard synthesis condition and foreign crystals.

此外，因为合成条件的局限和异质晶体的原因，关于磁性X型沸石的报道尚属首例。

youdao

Child soldiers often suffer from malnutrition, hard physical labor, and exposure to the elements and are in poor physical condition.

儿童兵一般都营养不良，做过沉重的体力劳动，受到自然环境的危害，身体条件很差。

youdao

It isn't hard to parody worst-case thinking, and at its extreme it's a psychological condition.

最坏情况“思维并不难模仿，事实上它是极端的心理状态。”

youdao

The condition causes dots of hard, thickened skin which are painful and uncomfortable.

BBC: Dundee University uncover gene behind skin disease

Every year, Christie's produces interesting vintage winter-resort sales a challenge given that these posters were originally produced for commercial purposes and often hung in the open, making it hard to find examples in good condition dating so far back.

WSJ: Collecting: Wintry Wonders for Your Walls

That was tough enough, but even after the diagnosis, it was hard to find any information on the condition.

CNN: Autism's mysteries remain as numbers grow