sweet birch oil 甜桦油香桦油,水杨酸甲酯...birch n.桦树,桦木,桦条桦...black birch 黑桦...Birch-Hirschfeld lamp 比尔希.希施费尔德氏治疗灯(治...white birch 白桦...rectified birch tar oil 桦木[焦]油...birch black 桦木黑;桦木炭黑...birch tar oil 桦木焦油...birch water 桦木汁...birch-seed oil 桦木子油...Birch-Hirschfeld's method 比尔希·希施费耳德氏法(检淀粉...birch tar(oil) 桦木焦油...birch bark tar 桦木焦油...birch camphor 桦木脑白桦脑,白桦[脂]醇...birch oil 甜桦油...
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