英文關鍵字
amortize
block
bounce
coil
compacted
compress
curve
elastic
equipment
factory
flexible
industry
manufacture
mattress
metal
metallic
object
pressure
production
set
shape
spiral
spring
springy
steel
store
strung
twist
wire
英文關鍵字
amortize
block
bounce
coil
compacted
compress
curve
elastic
equipment
factory
flexible
industry
manufacture
mattress
metal
metallic
object
pressure
production
set
shape
spiral
spring
springy
steel
store
strung
twist
wire