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- The synthesis of styralyl propionate can be achieved by microwave with ferric chloride and p toluenesulfonic acid as the catalysts. 报道以三氯化铁、对甲苯磺酸为催化剂,在微波辐射下合成丙酸苏合香酯。
- Triarylmethane structure polymer can be prepared from pyrene, phenol respective, and bezaldehyde as cross linking agent in the presence of p toluenesulfonic acid catalyst. 分别以芘、苯酚为原料，以苯甲醛为交联剂，对甲基苯磺酸为催化剂合成出具有三芳基甲烷结构的聚合物。
- Benzaldehyde(0.049mol) was treated with isopropylthiol(12mL) in the presence of p toluenesulfonic acid (3mmol) to give 84.9% benzaldehyde isopropyl mercaptal. 苯甲醛和异丙硫醇在对甲苯磺酸催化下发生反应，合成相应的缩硫醛，产率达84．9%25。
- The research was concentrated on the co catalysis effect and the related catalytic mechanism of strong acids,such as amino sulfonic acid, p toluenesulfonic acid and fluoroboric acid. 研究了氨基磺酸、氟硼酸及对甲苯磺酸的助催化作用,并探讨了其催化机理。
- I mind my p's and q's whenever I see him. 每当我见到他我都谨慎行事。
- In English, b, p, m and w are bilabials. 英语中的b、p、m、w为双唇音。
- AB and CD intersect at (the point) P. AB线和CD线在P点相交。
- The time now is 10:00 p, m, sharp. 现在的时间是晚上10点整。
- Ethyl p - hydroxybenzoatc 对羟基苯甲酸乙酯
- ethyl p - hydorybenzoate 对羟基苯甲酸乙酯
- To introduce the ethyl group into(a compound). 使乙基化把乙基引入（一化合物）
- ethyl p - hydroxybenzoate 对羟基苯甲酸乙酯
- ethyl p -hydroxybenzoate 尼泊金酸乙酯
- ethyl p--hydroxybenzoate 对羟基苯甲酸乙酯
- The "d" in "grandpa" has been lost by assimilation to "p". "grandpa"中的"d"因受"p"的同化而不发音。
- Ethyl acetate(71. 41b)was added to the slurry in the vessel. 把醋酸乙酯71.;4磅加到容器中的浆液内。
- The light now shining on P is called incident ray. 射到P点的光叫做入射光线。
- The children were told to mind their P's and Q's. 孩子们被嘱应小心谨慎。
- She has at last come into her own as p pop-singer. 她终于使自己成为一名流行歌曲演唱家。
- How do you pronounce p - h - l - e - g - m ? 你怎样读“p-h-l-e-g-m”这个单词?
