薄层的展开小室要求体积小、密闭性好、蒸气饱和度高。对20×20cm 的方板,一般实验室多采用搪瓷盘或标本缸展开,结果常不够理想。下面介绍一种简易的夹入式装置,可改善展开效果,缩短展层时间,且前沿整齐。取一根直径约为1.1 cm 的玻璃棒,弯曲如图1,然后将上下两面磨平,如图2,作为夹层。 The thin layer deployment chamber requires a small volume, good sealing, and high steam saturation. For 20 × 20cm square plates, labs often use enamel discs or specimen cylinders for deployment. The result is often not ideal. The following describes a simple clip-in device, which can improve the deployment effect, shorten the exhibition time, and have a neat leading edge. Take a glass rod with a diameter of approximately 1.1 cm, bend it as shown in Figure 1, and then flatten the upper and lower sides, as shown in Figure 2, as a sandwich.