1) plate_fin reactor
板翅型转化器
2) offset strip plate-fin heat exchanger
锯齿型板翅式换热器
1.
The structure of the offset strip plate-fin heat exchanger was optimized designed based on a genetic algorithm(GA).
应用遗传算法对锯齿型板翅式换热器的结构进行了优化设计。
3) wing dimorphism
翅型分化
1.
Advanced summarization of studies on wing dimorphism of the rice brown planthopper;
稻褐飞虱翅型分化研究进展
2.
Effects of nymphal density and rice growth stage on nymphal development, survival rate and wing dimorphism of different rice brown planthopper biotypes;
若虫密度和水稻生育期对稻褐飞虱不同生物型若虫历期、存活及翅型分化的影响
3.
Experiments were carried out with the pure-bred strains of both macropterous(M) and brachypterous(B) brown planthopper(BPH) ,Nilaparvata lugens (Stal) biotype Ⅱ ,biotype Bangladesh and biotype Cuulong Delta in order to know the effects of parents, rice growth stage and population density on the wing dimorphism of F1 progenies.
结果表明:稻褐飞虱3种生物型子代的翅型表型与亲代的遗传关系密切,但各生物型子代的翅型表型存在差异;在多头饲养条件下,水稻生育期对3种生物型翅型遗传的调节作用较为明显,但这种影响同亲代翅型和褐飞虱所属生物型有关;在单头饲养条件下,稻株生育期对不同生物型翅型分化几乎没有影响,但亲本遗传的制约依然存在。
4) T-shaped fin plate
T型翅片板
1.
Study on the heat transfer performance of spray falling film evaporator with T-shaped fin plates;
T型翅片板喷淋式降膜蒸发器传热性能研究
6) large-scale converter
大型转化器
1.
Characteristics of the new process were as follows:hydrogen chloride desorbed from chlorhydric acid,acetylene dehydrated by freezing and molecular sieve,two-stage pressure reaction,heptane circulation cooling technology,large-scale converter with special structure and a special catalyst.
其特点为:采用盐酸脱吸的氯化氢、冷冻脱水分子筛干燥的乙炔、二段带压反应、庚烷循环冷却技术和特殊结构的大型转化器及特制的催化剂,提高了转化器的生产强度,延长了催化剂的使用寿命,空间流速可达100m3/h(通过单位体积催化剂的乙炔的量)以上。
补充资料:板翅式热交换器(platewingheatexchanger)
板翅式热交换器(platewingheatexchanger)
铝制板翅式热交换器是在数层平金属板之间紧密地放置波纹状的金属导热翅片,并在每一层的四周加上封条,于温度近600℃的盐溶液炉中整体铅焊而成。翅片的主要作用是强化传热,也有增强两金属板强度的作用,在这种热交换器中相邻两通道之间的热交换,一部分通过平板传递热量,但绝大部分热量是通过波纹翅中传递的,因为平板之间均有波纹翅片,因而大大增加了传热面积,所以它的单位体积内的传热面积比一般管式热交换器大10倍以上,达到4000~5000m2/m3。通过各通道之间的不同组合,可得到逆流、错流等形式的热交换器。它具有单位体积传热面积大、传热效率高、流体阻力小、热容量小、结构紧凑及同时允许几种介质进行热交换等优点。
说明:补充资料仅用于学习参考,请勿用于其它任何用途。
参考词条