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- The synthesis of 2 amino 4 methylamino 6 chloro 1,3,5 triazine by amination and methylamination from cyanuric chloride in one reaction system was described. 研究了在同一反應器中由三聚氯氰經(jīng)氨化、甲胺基化合成2氨基4甲胺基6氯三嗪的方法。
- The synthesis of 2 amino 4 methylamino 6 chloro 1,3,5 triazine by amination and methylamination from cyanuric chloride in one reaction system was described. The results showed that the yield was 93%. 研究了在同一反應器中由三聚氯氰經(jīng)氨化、甲胺基化合成2氨基4甲胺基6氯三嗪的方法。確定其優(yōu)惠反應條件,產(chǎn)品收率可高達93%25。
- If you subtract 3 from 5, you get 2. 五減去三就得二。
- These fish vary in weight from 3 lb to 5 lb. 這些魚(yú)的重量從3磅到5磅不等。
- Can you count backwards from 5? Yes, 5, 4, 3, 2, 1. 你能從5倒著(zhù)數嗎?可以，。
- The firm owed$5,000 and sent us$3,000 on account. 該公司欠我們5,000美元，暫付3,000美元。
- 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。
- Size 5 5 1 6 0 2 sq km. 3 0 0 0 km long coastline. 面積551602平方千米。
- SYNC 2) NOTE 3) TEMPO 4) DELAY 5) FREQ. 以下五個(gè)參數與節拍同步有關(guān).
- Prepare for dropoff...Countdown, 5, 4, 3, 2, 1. 準備跳傘...倒計時(shí)：5，4，3，2，1。
- There are four primes less than 10: 2, 3, 5, and 7. 有四個(gè)小于10的素數：2、3、5和7。
- The farmer paid 3 laborers to gather the crop. 農場(chǎng)主雇傭3名工人收割莊稼。
- Add up 3, 4 and 5 and you'll get 12. 把三,四,五相加,總數是十二。
- He lives 3 miles away from here. 他住在距離這里三英里的地方。
- I'm tied up in a meeting until 3 pm. 我開(kāi)會(huì )直到下午三點(diǎn)鐘方可脫身。
- Mr. and Mrs. Jones have 3 daughters. 仲斯夫婦有三個(gè)女兒。
- The beam has a thickness of 3 inches. 這根梁厚3英寸。
- The government hopes to hold salary increase to 3%. 政府希望將工次增長(cháng)率控制在3%25。
- The horse racing is to be held at 3 p.m. tomorrow. 賽馬比賽將于明天下午3點(diǎn)舉行。
