查询词典 ageing

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。

It's during those brief spells of non uniform motion that her ageing races way ahead of the grandfather's.

就是在这短短的非匀速运动的时间里，她变老的速度就超过了她的祖父。

The thought of growing old may be unbearable to some humans, but for two bears who turned 30 on Wednesday, ageing is far from unsavoury.

变老对于某些人而言是不愿面对的现实，但对悉尼两只迎来30岁生日的灰熊来说是一件开心的事。

Many began to wonder whether the ageing, unwieldy body was even capable of change.

许多人开始提出这样的问题：这个老迈而笨重的机构是否还有进行改革的能力。

This decline in vigour with the passing of time is called ageing.

人类发现的最不愉快的一个事实是：人必然会衰老。

Wine making and ageing Traditional vinification by pumping-over under the pressure of CO2 during the fermentation (3 weeks).

葡萄酒根据传统的酿造过程进行发酵产生二氧化碳（3周），在橡木桶种酿造12个月在进行灌装

Generally speaking, wine farming people complete vinous ageing process with the oak bucket that has 13 years of histories.

一般而言，酒农们都用有13年历史的橡木桶来完成葡萄酒的老化过程。

The paper summarizes the degradation rule of physical mechanical property of vulcanizate during the period of heat ageing, which involves the relationship between the property, variakble tempreture and time.

文中综述了近三十年关于橡胶在热氧老化下物理机械性能变质规律的认识和掌握，包括性能变化与时间关系，性能变化与温度关系及它同时与时间和温度关系的研究，以及表示这些关系的各种数学模型。

The paper studies the degradation rule of physical mechanical property of vulcanizate during the period of heat ageing, which involves the relationship between the property, variable temperature and time. The analytic expressions for the frictional temperature rise of the interface were presented according to the theory of heat conduction of solid when a tire slides of rolls along the road.

本课题针对影响汽车轮胎橡胶机械性能的温度老化模型进行了一定深度的理论研究，并进一步研究轮胎的在滑动、滚动时的温度场的数学模型，在理论上论证了温度、压力是影响轮胎行使安全性能的重要因素，并以其作为最终的监测对象。

The new Sherries are placed in casks, made from American white oak, for ageing.

新的雪莉酒置于美国出产的白橡木桶中老熟。

The French are not suggesting a new EU treaty, but they have plenty of other wheezes.

法国人并不是在建议签署一个新的欧盟条约，但他们有许多其他的阴谋。

This letter was written by my brother.

这封信是我弟弟写的。