An oil barrel, the bottom of which is a square with a side length of 2.5 decimeters and a height of 3.6 decimeters. Fill a barrel of oil like this into a 750ml bottle, how many bottles can it hold?
一种油桶，底面是边长2.5分米的正方形，高3.6分米．把这样的一桶油注入750毫升的瓶子里，可以装多少瓶？
<gadget id="calculator">1_000 / 750</gadget>
<output>4/3 = around 1.333333</output>

<gadget id="calculator">2.5 * 2.5 * 3.6 * (4/3)</gadget>
<output>30</output>

<result>30</result>