shí / yàn / shì / lǐ / yòng / yí / qì / cè / liáng / piān / zhèn / guāng / de / fāng / xiàng / hé / qiáng / dù

实验室里用仪器测量偏振光的方向和强度。

In the laboratory, instruments are used to measure the direction and intensity of polarized light.