倍数的形容主要有以下几种方法：

倍数 + as + 形容词原级 + as

例如：This book is twice as thick as that one.

倍数 + 比较级 + than

例如：The new building is three times taller than the old one.

倍数 + the size/length/width/height/age of

例如：The earth is twice the size of the moon.

倍数 + what从句

例如：He earns five times what he did last year.

倍数 + as…as

例如：Her salary is twice as high as mine.

倍数 + 比较级 + than…

例如：The new car is ten times faster than the old one.

倍数 +名词 + of

例如：The ocean is five times the depth of the river.

这些方法可以帮助你更准确地描述一个数是另一个数的多少倍。选择哪种方法取决于句子的具体语境和所要表达的比较类型。