30peck是多少L？
30peck = 264.293L
是264.293L，所以说成264L也没问题——四舍五入的误差在0.5%以内。
反过来，30L是多少peck？
30L = 3.405peck
计算公式: L = peck × 8.809768
该数值前后的 peck → L
12 peck105.717L
14 peck123.337L
16 peck140.956L
18 peck158.576L
20 peck176.195L
22 peck193.815L
24 peck211.434L
26 peck229.054L
28 peck246.673L
30 peck264.293L
32 peck281.913L
34 peck299.532L
36 peck317.152L
38 peck334.771L
40 peck352.391L
42 peck370.01L
44 peck387.63L
46 peck405.249L
48 peck422.869L
50 peck440.488L