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- Synthesis of Butyl Isovalerate Using Sodium Bisulphate as Catalyst 硫酸氫鈉催化合成異戊酸丁酯
- Keywords sodium bisulphate;catalyzing esterification;butyl isovalerate; 硫酸氫鈉;催化酯化;異戊酸丁酯;
- The swimmer was timed at 50.50 sec. 這名游泳者的成績(jì)被測定為五十點(diǎn)五零秒。
- As a consequence, the oxidation of sec butyl alcohol was inhibited by the presence of S ad . 相反 ;Pt電極表面S吸附原子的氧化會(huì )消耗表面氧物種 ;抑制仲丁醇的氧化 .
- The compound butyl rubber is calendered. 將混制成的丁基橡膠進(jìn)行精壓。
- The divergence time is now greater than 30 sec. 發(fā)散時(shí)間超過(guò)30秒。
- His time of 3 min 2 sec remains unbeaten. 他那3分2秒的記錄仍未打破.
- To bring a butyl group into(a compound). 丁基化將丁基組引入（某化合物）
- It is from, hang on a sec, oh yeh, Japan. 那是來(lái)自，等一會(huì )兒，對了，日本。
- It's the hang on a sec,yes,the 10th of May. 那是，等一會(huì )兒，對了，5月10日。
- Possess of unique butyl quantity alarm system. 特有膠量報警系統。
- Stay there. I'll be back in a sec. 呆著(zhù)別走。我馬上回來(lái)。
- It's from, hang on a sec, oh yeh, Japan. 那是來(lái)自，等一會(huì )兒，對了，日本。
- Reasonable butyl spreading system and low pressure. 出膠系統合理，壓力低。
- Reduce all damage taken by 60% for 8 sec. 在8秒內受到的所有攻擊傷害減少60%25。
- Do you mind if I sit here for a sec. 介意我在這兒坐一會(huì )嗎?
- Just wait here for me for a sec. 等我一會(huì )兒。
- Huh, thought I lost my shadow for a sec. 啊哈,我還以為自己的影子丟了呢。
- Um, um, Rachel can we talk for a sec? 呃,瑞秋,我們能談?wù)剢?
- Is it OK to talk to you for a sec? 可以跟你談一會(huì )兒?jiǎn)?
