shí / yàn / yāo / qiú / bǎ / róng / yè / jiǎo / bàn / jūn / yún / shǐ / zhěng / gè / yàng / pǐn / bǎo / chí / jūn / zhì

实验要求把溶液搅拌均匀，使整个样品保持均质。

The experiment requires stirring the solution evenly so that the entire sample remains uniform.