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- The synthesis of p phthalaldehyde from p xylene by chlorination and catalytic oxidation was studied. The total yield was over 89%, the purity of the product was over 99%. 以對二甲苯為原料，經(jīng)氯化、催化氧化合成對苯二甲醛，收率大于89%25，質(zhì)量分數在99%25以上。該工藝提高了產(chǎn)品的收率和純度
- Keywords N formylmorpholine;benzene;toluene;p xylene;heptane;liquid liquid equilibria; 甲酰嗎啉;苯;甲苯;對二甲苯;正庚烷;液-液平衡;
- I mind my p's and q's whenever I see him. 每當我見(jiàn)到他我都謹慎行事。
- In English, b, p, m and w are bilabials. 英語(yǔ)中的b、p、m、w為雙唇音。
- AB and CD intersect at (the point) P. AB線(xiàn)和CD線(xiàn)在P點(diǎn)相交。
- The time now is 10:00 p, m, sharp. 現在的時(shí)間是晚上10點(diǎn)整。
- Beijing Poly International Auction Co., Ltd. 北京保利國際拍賣(mài)有限公司。
- Hangzhou pacific poly textiles co., Ltd. 杭州太平洋保利紡織品有限公司。
- Party member, cadre and the rich poli. 黨員、干部與黨的先富政策;
- Convert the cylinder to editable poly. 把圓柱體轉化成可編輯多邊形物體。
- Next week I must start my term paper for Poli Sci. 到下周,我必須著(zhù)手寫(xiě)政治學(xué)的期末論文了。
- No permitamos q la poli boludee! 所在地： Hagamos las cosas bien.
- The "d" in "grandpa" has been lost by assimilation to "p". "grandpa"中的"d"因受"p"的同化而不發(fā)音。
- I went into BMT after poly and my ex GF was in NUS. （內容大意：我當兵的時(shí)候，前女友在國大念書(shū)；
- The light now shining on P is called incident ray. 射到P點(diǎn)的光叫做入射光線(xiàn)。
- The children were told to mind their P's and Q's. 孩子們被囑應小心謹慎。
- For the first two fast steps of p - xylene and toluic aldehyde oxidation, the rates decreased with increase of water content. 反應后期的慢反應步驟則隨含水量的增加先加快后減緩,出現一個(gè)最大值,此時(shí)總氧化時(shí)間最短。
- She has at last come into her own as p pop-singer. 她終于使自己成為一名流行歌曲演唱家。
- Poly packing, forming a sack, stuffing, packing are done just once. 多支包裝、成袋、充填、包裝一次完成。
- How do you pronounce p - h - l - e - g - m ? 你怎樣讀“p-h-l-e-g-m”這個(gè)單詞?
