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- average air age 平均空气年龄
- The average air temperature should be about 24 degrees Celsius. 空气的平均温度应该在24摄氏度左右。
- Investigation on air age in a ventilated room with tracer gas technique. 用示踪气体方法研究通风房间的空气龄。
- Furthermore,the extreme of the annual average air temperature occurred easily with the extreme of sunspot. 太阳黑子峰值年和谷值年前后,江汉平原地区的年平均气温易出现极值。
- The influence of average air temperature on the callus differentiation ability was also not clear. 愈合组织的分化率并不随著愈合组织形成率的高低而变化,亦无法找出其与外界温度的关系。
- The difference of the average air conduction hearing levels was significant between the positive and negative DPOAE groups at high frequency (P<0.01). DPOAE高频未检出组的高、低频气导平均阈值明显高于检出组(P<0.;01)。
- The average age of the boys in this class is fifteen. 本班男生的平均年龄是十五岁。
- Air quality monitoring results for 1997 indicated that five of the nine air quality monitoring stations did not meet the annual average Air Quality Objective for respirable suspended particulates. 1997年空气质素监测结果显示,在九个空气质素监测站中,有五个不能符合可吸入悬浮粒子的全年平均空气质素指标。
- We analyze the ventilation efficiency of the houseroom by comparing the indoor flow situation and distribution of mean air age under different inlet air velocities and different inlet air directions. 通过比较相同风向、不同进风速度以及相同进风速度、不同风向下的住户室内流场情况和空气龄分布情况分析了住户内的自然通风效果。
- On the susceptible wheat variety,the main factors of affecting the var-iaton of infection probability(IP)of powdery mildew(Erysiphe graminisf.sp,tritici) were the average air temperature(T)and relative humidity(RH). 在感病的小麦品种上影响白粉病菌(Ery siphe graminis f.;sp
- From the introduction,with using underfloor air supply system,the air age can be decreased,the efficient of air change and ventilation are increased,and the IAQ is significantly improved. 探讨了架空地板送风系统的工作原理和特点,分析了该系统的送风静压层和送风特性,并从这种送风特性出发,综述了架空地板送风系统在室内空气品质、热舒适性和节能等方面的特点。
- This paper dis-cusses its application in heating network operation, works out the experiential formula about relation between average air temperature and lowest air temperature per day. 论述了质调节在热网运行中的应用情况,建立了日平均气温与日最低气温的经验公式,根据日最低气温进行热网质调节,既保证供热效果,又节约能源。
- Experts at Purdue University Extension in Indiana say tomatoes started from seed take 45 to 90 days until till harvest.The average air temperature should be about 24 degrees Celsius. 美国印第安纳州普渡大学的专家们说,番茄从播种到收获大概要45到90天,空气平均温度要达到约24摄氏度。
- The average age of the students is 19. 学生的平均年龄是19岁。
- The influence of low level of CSM on the thermo oxidative stability of EPDM vulcanizate was investigated by hot air aging test,DSC and TG. 用热空气老化试验、差示扫描量热法和热重分析法研究添加少量氯磺化聚乙烯(CSM)的EPDM硫化胶的热氧稳定性。
- The air in the garden was warm and fragrant. 花园里的空气一片温馨。
- The archers sent their shafts through the air. 弓箭手向空中射出利箭。
- Effects of CIP amount on mechanical,hot air aging and thermal stability properties of the composite were studied systemically and the microstructure was analyzed with SEM. 系统研究了羰基铁粉添加量对复合橡胶机械性能、热空气老化性能和耐热稳定性的影响;利用扫描电镜探讨了复合材料的微观结构。
- The average output of the factory is 20 cars a day. 该工厂的平均产量是每天20辆汽车。
- His income is well below the average. 他的收入大大低于平均水平。
- 今日热词
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- 深远海浮式风电平台 - deep-sea floating wind power platform
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- 京雄高速公路 - Beijing-Xiongan expressway
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- 农业及相关产业增加值 - the added value of agriculture and related industries