ether extract

基本解釋

The content of carotenoid and petroleum ether extract reduced at three months of aging and then increased.
類胡蘿卜素和石油醚提取物含量在陳化三個月時降低，之后上升。
The content of petroleum ether extract in the CB-1 Cutter of 2 curing technique, 3 maturities and 2 sampling ways were determined.
測定了2種烘烤工藝、3個成熟度和2種取樣方式的CB-1品種中部葉烤后石油醚提取物的含量。
The ether extract content at different part of Yunnan pine (Pinus yunnanensis) individual was studied by adopting one experimental site and two natural superior stands as the targets.
以云南松的一個試驗(yàn)點(diǎn)和兩個天然優(yōu)良林分為對象，研究了云南松個體不同部位乙醚提取物含量的特點(diǎn)。