桦木
3.The reality wood flat floor takes wood assortments such as birch , oak wood , elm , color wood as raw material.
6.THE CLASSIFICATION AND GEOGRAPHICAL DISTRIBUTION OF BETULACEAE OF YUNNAN PROVINCE
7.He experiments with a vast range of woods, including Baltic birch and black walnut.
8.Air permeabilities of four kinds of wood chip aggregates of different species such as poplar, birch, basswood and elm were experimentally studied.
9.For different exposures,the MPFs are:36 2% for linden,26 3% for fir,15 7% for lacebark pine,9 6% for birch and 2 1% for polar.

