Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中的一种含氮碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气取代之前被氮气占据的肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取的水溶物，用配培养基，提供碳水化合物及氮源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

存在DNA与RNA中含氮碱基，具有个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气取代之前被氮气占据肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取水溶物，用配制真菌培养基，提供碳水化合物及氮源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中一种含碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气代之前被气占据肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提溶物，用配制真菌培养基，提供碳化合物及源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中的一碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气取代之前被气占据的肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取的水溶物，用配制真菌培养基，提供碳水化合物及源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中的一种含氮碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以取代之前被氮占据的肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取的水溶物，配制真菌培养基，提供碳水化合物及氮源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中的一种含碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧取代之前占据的肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取的水溶物，用配制真菌培养基，提供碳水化合物及源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中的一种含氮碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气前被氮气占据的肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提的水溶物，用配制真菌培养基，提供碳水化合物及氮源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中的一种含氮碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以氧气取代之前被氮气占据的肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取的水，配制真菌培养基，提供碳水化合及氮源。

Guanine A nitrogenous base found in DNA and RNA.Guanine has a pruine ring structure.

是存在DNA与RNA中的一种含氮碱基，具有一个嘌呤环结构。

Preoxygenation replaces the primarily nitrogenous mixture of ambient air, which constitutes the patient's functional residual capacity, with oxygen.

这样可以用氧气取代之前被氮气占据的肺泡。

Malt extract is made by extracting the soluble products from sprouted grain,used in mycological as a source of carbohydrate and nitrogenous.

性状本品系大麦提取的水溶物，用菌培养基，提供碳水化合物及氮源。