provitamin A

同根派生

Choosing varieties that have this mutated gene can provide on average three-fold higher levels of provitamin A, the researchers said.
研究人員表示:從含有這個突變基因的品種中選擇能提供平均3倍更高水平的維他命原A.
It‘s still founded that peas contains ample provitamin A which can convert into vitamin A in the body and thus in turn keep the skin replenished with moisture.
現(xiàn)代研究更是發(fā)現(xiàn)，豌豆含有豐富的維生素A原，維生素A原可在躰內(nèi)轉(zhuǎn)化爲維生素A，起到潤澤皮膚的作用。
A common existing technique for assessing the provitamin A content of corn varieties can be prohibitively expensive for plant breeders, the researchers said, but the new one is vastly less expensive.
研究人員表示:對於植物育種來說;用現(xiàn)有通用的技術對玉米品種中的維他命原A含量進行評估是過於昂貴的.;而新方法卻是大大地便宜了
There is a vein of melancholy in his character.
他的性格中有少許憂鬱的氣質(zhì)。
There was a long lag in forwarding mail to us.
轉(zhuǎn)寄給我們的郵件晚了很久才拿到。