“桦木”造句

他用一块桦木做一只小船.
He used a piece of birch to make a small boat.

只有杨木和桦木的原木出货高于去年.
Only Poplar and Birch log shipments are up for the year.

利用均匀设计法优化了微波辅助提取白桦树皮中桦木醇的工艺.
The microwave - assisted extraction ( MAE ) of betulin from Betula platyphylla Suk.

• #桦木