杉木绿冠的石油醚提取物得率，为其绝干重量的5．4％。

The yield of petroleum ether extractives from the crowns of C. lanceolata was 5 4% of its dry weight.

youdao

杉木绿冠的石油醚提取物得率，为其绝干重量的5．4％。

The yield of petroleum ether extractives from the crowns of C. lanceolata was 5 4% of its dry weight.

youdao