热值

This paper presented a practical mathematical model of coordinated control object of supercritical pressure unit, adopting observer to estimate coal heat value, and design a synthetic coordinated control system with state feedback based on increment function observer-KDx, PID, intelligence control and British thermal unit.

该文给出超临界机组协调受控对象的一种实用数学模型，采用观测器预估燃煤的热值，设计一种基于增量式函数观测的状态反馈+串级PID+智能控制+热值补偿的综合型协调控制系统。

Although the total calorific value of oxypropane flame is higher than that of oxyacetylene flame, its first calorific value is lower,so its burning temperature is lower and its heating time is longer.

氧丙烷焰比氧乙炔焰的总热值高，但一次热值低，因此燃烧温度低，预热时间较长。

Corniculatum and Rhizophora stylosa during winter showed that nutrient content and caloric values of R, stylosa which was introduced from low latitude varied more than that of Avicennia marina and Aegiceras corniculatum which were native. R. stylosa had lower caloric values than the other two species

对白骨壤、桐花树和红海榄的比较研究表明，种源近期来自纬度较低的红海榄在越冬期间叶片营养物质含量和热值变化幅度最大，表明其对低温较其它两种更为敏感，其热值含量也低于当地自然分布的白骨壤和桐花树。

P. mume Meiren and P. serrulata had higher GCV and AFCV than M. grandiflora and M. denudate.

美人梅和樱花的干质量热值和去灰分热值总体上高于白玉兰和广玉兰。

The caloric values and ash contents of some mangrove woods in Dongzhai Harbor Mangrove Forest Reserve of Hainan Province were determined in Summer,and the changes of the caloric value of Kandelia candel woods at different latitudes were studied.

在夏季对海南东寨港红树林自然保护区一些红树植物木材的灰分含量和热值进行了测定，并研究了夏季不同纬度的秋茄木材热值的变化。

Based on the measurements, the ash-free caloric value of the samples was calculated, and the characteristics of caloric value and ash content of the sample...

结果表明：植物各器官的干质量热值、去灰分热值分别在10.7～22.17和13.89～23.04kJ·g-1之间，叶片的干质量热值和去灰分热值明显高于其他器官(P.05)。

The change patterns of the calorific values of eight dominant plant species on Xilin River fluvial wetlands were studied by oxygen bomb calorimeter, with the causes of the change patterns analyzed.

本文采集了锡林河湿地的8种主要植物，并用氧弹式热量仪测量其热值，阐述了这些植物的热值的动态变化规律，并对热值变化的原因作了探讨。

Different parts of twenty dominant plant species in five plantation communities on the subtropical hilly lands in Heshan of Gunagdong as well as the litters from three of the five plantation communities were sampled, and their gross caloric value and ash content were measured by using a PARR-1281 oxygen bomb calorimeter and a muffle furnace.

从广东鹤山南亚热带丘陵5种人工林群落中采集20种主要植物器官及3种群落凋落叶样品，利用PARR-1281氧弹热量计和马福炉分别测定样品的干质量热值和灰分含量，再计算去灰分热值；按器官、个体和生长型等比较分析植物的热值和灰分特征。

The results showed that the calorific values of the test plant species had no unified change pattern, which was possibly related to the partitioning ratio of calorific value in different plant organs and the timing when the reproductive period appeared. In general, spike had a higher calorific value than leaf and stem, and aquatic plants had obviously lower calorific value than mesophytes and wet mesophytes. Within a species, the change pattern of calorific value had certain relations to the phenophase, with approximately two lowest values and two highest values. Among the species, the differences in the calorific value were decided by the nature of the species themselves. Under the same habitat and climatic conditions, the species that contained more materials rich in energy could more easily accumulate calorific, and thus, more adaptable to grow under this environment.

结果表明：各物种的热值动态变化规律并不是统一的，这种变化可能与植物各器官热值的变化及生殖期出现的时间有关；各植物器官的热值普遍表现出穗的热值大于茎和叶；水生植物的热值明显小于中生性和湿中生性植物；种内热值变化随物候期变化有一定的规律，大约会出现2次低值、2次高值；种间热值差异是由于植物本身性质决定的，在相同生境和气候条件下，植物体中含能物质越多，就越易积聚热值，从而更适宜生长在此环境。

Combustion Mechanisms of Hetero-geneous Solid Propellants; Final rept.

总产热值；总热值；高热值：指燃烧产生的总热值。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失