This is the 2768th most frequent Chinese word.
器材
Equipment; apparatus.
器材 is used here to refer to instruments and tools needed for conducting the experiment, emphasizing their role as essential equipment.
为了完成实验，我们需要准备足够的器材。
To complete the experiment, we need to prepare sufficient equipment.
器材 in this sentence denotes physical exercise tools and devices available at the gym, highlighting their diversity and purpose.
这家健身房提供了丰富多样的锻炼器材。
This gym offers a variety of exercise equipment.
器材 refers to technical equipment used in photography in this context, focusing on their quality and specificity to the photographer's needs.