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- AIM To develop a simple and economical new approach to the synthesis of 6 [ N (4 aminobutyl) N ethyl] amino 2,3 dihydro 1,4 phthalazinedione (ABEI). 目的建立一種合成化學(xué)發(fā)光標記試劑6-[N-(4-氨基丁基)-N-乙基]氨基-2,3-二氫-1,4-酞嗪二酮(ABEI)的簡(jiǎn)便、經(jīng)濟的新方法。
- The Synthesis and Separating of S,S and R, S5 benzoyl 2,3 dihydro 1H Pyrrolizine 1 Carboxyl Amino Acid Esters 盧一民,郭健, 苯甲?；?2,3-二氫-1H-吡呤-1-甲酰氨基酸酯的合成及其光活性異構體的拆分
- Is the match on at 2 pm or 3 pm? 比賽是下午2時(shí)還是3時(shí)開(kāi)始?
- If you subtract 3 from 5, you get 2. 五減去三就得二。
- Will 2,000 dozens be enough for selling? 兩千打夠賣(mài)嗎？
- The counselor bilked his clients out of$2 million. 那位顧問(wèn)從他的顧客那里騙取了200萬(wàn)美元。
- Every afternoon the baby takes a nap for 2 hours. 每天下午寶寶都要睡兩個(gè)小時(shí)。
- He added 2 gallons of fuel to his car. 他給汽車(chē)加了2加侖油。
- She demonstrated that 2 and 2 are four. 她證明2加2等于四。
- If you subtract 2 from 8, you get 6. 8減去2是6。
- The book will run to nearly 2,000 pages. 這本書(shū)將厚達兩千頁(yè)之多。
- The bridge is almost 2 kilometers long. 這座橋差不多有兩公里長(cháng)。
- The diameter of the tree-trunk is about 2 meters. 這樹(shù)干的直徑大約是2米。
- This fossil may be over 2 million years old. 這化石可能超過(guò)二百萬(wàn)年了。
- Take Blue Bus No. 3 and transfer at Bundy to No. 2. 先坐三路藍色公共汽車(chē)，到邦迪換二路。
- It's hard to make a card with 3 or 2 of heart. 很難用紅桃3或2贏(yíng)牌。
- The bridge is almost 2 kilometres long. 這座橋差不多有兩公里長(cháng)。
- The doors were numbered 2,4, 6 and 8. 這些門(mén)編為2、 4、 6、 8號。
- It's hard to make a card with 3,2 of hearts. 很難用紅桃3或2贏(yíng)牌。
- A lamb with 2 tails is a freak of nature. 有兩條尾巴的小羊是畸形的。
