查询词典 carbon 14

With cellobiose and cellooligosaccharide as carbon source, the proliferation multiple of B. odolescentis was 2.14 and 2.84, respectively.

以纤维二糖、纤维低聚糖为C源增殖青春双歧杆菌，菌体质量浓度增殖倍数分别为2.14、2.84。

Minutes once, tested , sucking the air anion in in glass face guard in connection with the expert, may make the lung absorb oxygen amounts increasing by 20%, discharge carbon dioxide amounts but increase by 14.5% but, therefore the anion has the effect improving and increasing a pulmonary function's.

有关专家曾经试验，在玻璃面罩中吸入空气负离子30分钟，可使肺部吸收氧气量增加20％，而排出二氧化碳量可增加14.5％，故负离子有改善和增加肺功能的功效。

Bulk carbon dioxide is typically stored as a liquid in storage tank s with capacities of 6, 14, 26, and 50 tons.

大量的二氧化碳典型地作为液体储存在容量为6、14、26、和50吨的储存罐里。

The citric acid-producing strain Aspergillus niger 2363-2, was isolated and used in our research. The fermentation conditions were optimized as follows: sucrose as carbon source 8. 0-14. 0%, ammonium chloride as nitrogen source 3. 0-4. 0g/l, initial pH 2. 0, and cultural temperature 30℃. The influential factors of formation of spores were also studied, and a series of measures were taken to restrain the spore formation on the basis of our experimental results. With the consideration of the cultural environment and microbial cell itself, the factors affecting the duration of citric acid-producing activity of microbial cells were examined, and it is found that undissociated citric acid and the ageing of microbial cells are the main factors. The experimental results also show that partial replacement of fermentation broth can lengthen the duration of citric acid -producing acitivity of microbial cells.

筛选出了用于试验研究的柠檬酸发酵用菌Aspergillus niger 2363-2，确定了其最适发酵条件—碳源选用蔗糖，浓度8.0~14.0%，氮源为NH〓Cl，浓度3.0~4.0g/l，发酵初始pH值为2.0，培养温度30℃；讨论了分生孢子产生的影响因素，并通过试验提出了抑制分生孢子产生的措施；从分析微生物所处的环境和微生物本身两个方面出发，探讨了影响微生物菌体产酸活性持久性的因素，认为分子态柠檬酸和菌体本身的老化是影响微生物产酸活性持久性的两个主要因素，并提出采用部分置换发酵液发酵能延长微生物菌体的产酸活性。

Result The results showed that the substrate carbon conversion efficiency of Amygdalus mongolica Maxim. and Amygdalus pedunculata Pall. was all a constant, was 0.55, 0.57 respectively. The adapted growth temperature scope of Amygdalus mongolica Maxim. and Amygdalus pedunculata Pall. was 14-24, 13-33 ℃ respectively. The optimal growth temperature of Amygdalus mongolica Maxim. and Amygdalus pedunculata Pall.

结果］结果表明，在所测定的范围内，随温度变化蒙古扁桃和柄扁桃的底物碳转化效率为常数，分别为0.55、0.57；适宜蒙古扁桃生长的温度范围为14~34℃，最适生长温度为25℃，适宜柄扁桃生长的温度范围为13~33℃，最适生长温度为24℃。

Firstly, headspace solid-phase microextraction was established to determine AITC by orthogonal design. Extraction temperature, stir speed, extraction time, and desorption time were set at 40℃, 900r/min, 30min, and 5min, respectively. Under these optimal conditions, volatile flavor compounds in mustard oil, wasabi, and 'Chongcai'leaf mustard product were identified by SPME/GC/MS. In these three samples, 6,12,17 constituents were identified respectively; Allyl isothiocyanate was the main flavor compound, which accounted for 73.45%, 64.25%, 32.74% of total volatile compounds, respectively. Carbon disulfide, a hydrolysis product of AITC, accounted for 14.37% 25.40%, 51.67% of total volatile compounds respectively. There were some other isothiocycannates, such as butane, 1-isothiocyanato-, isobutyl isothiocyanate, 1-benzene, 4-isothiocyanato-, benzene (2-isothiocyanatoethyl)-, etc.

首先采用正交实验设计优化固相微萃取技术的前处理条件，结果表明，以萃取温度40℃、搅拌速度900r／min、萃取时间30min、解吸时间5min为最佳条件；在此最优条件基础上，利用SPME／GC／MS联用技术分析芥末油、青芥辣、冲菜的挥发性风味成分，分别检出6、12、17种化合物，主要风味物质均为AITC，相对丰度分别为73.45％、64.25％、32.74％；AITC的水解产物二硫化碳的相对丰度分别为14.37％、25.40％、51.67％；还检测到了其它几种异硫氰酸酯，如异硫氰酸丁酯、异硫氰酸异丁酯、异硫氰酸丁烯酯、2-苯乙基异硫氰酸酯等。

Winnie, the 14-year-old domestic shorthaired cat, saved her New Castle, Indiana, family from carbon monoxide poisoning.

Winnie ，14岁的家庭驯养短毛猫营救了印第安纳州的全家免于一氧化碳中毒。

With 13,000 cabs on the streets, most of which are Ford Crown Victorias that average only 14 miles per gallon, this change will help reduce carbon emissions in the city.

同13，000出租车在街道上，其中大部分是福特victorias冠，平均只有14英里，每加仑这种变化将有助于减少碳排放的城市。

CO 2 was used to trace carbon assimilate transportation and distribution in different organs of different apple rootstocks and grafted trees.

采用14 C示踪方法研究了苹果不同砧木和砧穗组合植株对14 C 同化分配的影响。

Radiocarbon dating is basically this: a radioactive isotope of carbon, C-14, is formed in the atmosphere by cosmic rays.

放射性碳测年，基本上这个：放射性碳同位素、碳14是由大气中形成的宇宙射线。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。