常見例句雙語例句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點和兩個天然優(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。 返回 ether extract