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- Ethyl chloroformate reacted with both the hydroxy group and the carboxy group of the 17 position. 用氯甲酸乙酯将17位醇羟基和羧羟基同时酰化;
- The carboxy lation efficiency of PEPC transgenic rice plant increased by 49.3% and the CO2 compensation point decreased by 26.2% than that of untransformed rice. 转PEPC基因水稻的羧化效率比原种高49.;3%25;CO2补偿点降低26
- The carboxy methylation reaction between Chinese honey locust and chloroacetic acid was studied. The influences of raw material quantity, the size of raw powder and the reaction temperature on the degree of substitution were discussed. 研究了皂角种子胶与氯乙酸的羧甲基化反应,主要讨论了原料用量、原料颗粒大小及反应温度等因素对羧甲基化反应取代度的影响。
- The carboxy?terminal domain of the largest subunit of the RNA polymerase II (CTD) is comprised of multiple repeats of a conserved heptapeptide with the consensus sequence-Tyr-Ser-Pro-Thr-Ser-Pro-Ser-. RNA聚合酶II最大亚基末端的羧基端结构域(CTD)是由以七氨基酸(%24CTyr-Ser-Pro-Thr-Ser-Pro-Ser-)为重复单位的高度保守的重复序列组成的。
- A new criterion to decide whether the carboxy group coordinating to the metallic ion in mono or bi dentate-fashion in an ambiguous situation, base on coordination bond distances and angles. 在很多情况下,一个羧基与中心金属离子是单齿配位还是螯合配位是不明确的。 通过上述晶体结构中配位键长键角的分析,得到了一个行之有效的标准,判断羧基与中心金属离子是单齿配位还是螯合配位。
- The wind whirled the dead leaves about. 风吹得枯叶在四处回旋。
- The wind was whispering in the trees. 一阵风穿过树林沙沙作响。
- There are 26 letters in the English alphabet. 英语字母表中有26个字母。
- Foreign nationals were asked to leave the country. 外国侨民被要求离开该国。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- A country must have the will to repel any invader. 一个国家得有决心击退任何入侵者。
- Swimming is the best way to tone up your body. 游泳是健体强身的最好方法。
- A fire was burning in the grate. 火在壁炉中燃烧着。
- They cleaved a path through the wilderness. 他们在荒原中开辟出一条路。
- They denounced him to the police as a criminal. 他们向警方告发他是罪犯。
- You didn't embarrass me in the slightest. 你一点也没让我为难。
- I bought a pair of tan leather shoes the other day. 前几天我买了双棕褐色的皮鞋。
- He arrived at the meeting place beforehand. 他提前到达会面地点。
- He beckoned to me from across the street. 他在马路对面向我招手致意。
- He bit off a large piece of the apple. 他咬下一大块苹果。
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海词词典，十七年品牌
