单位质量
- 与 单位质量 相关的网络例句 [注:此内容来源于网络,仅供参考]
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Heat liberated by a unit mass of liquid at its freezing point when it ''.
在凝固点时一单位质量的液体凝固的时候放出的热。
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Heat absorbed by a unit mass of material when it changes from a solid to a gaseous state.
一单位质量的固体为变成气体所吸收的热。
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Heat liberated by a unit mass of liquid at its freezing point when it solidifies.
在凝固点时一单位质量的液体凝固的时候放出的热。
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Catalyst activity was determined by not only specific surface area of catalyst but also the distributions of active center and utilization ratio of internal surface.
实验结果表明:催化剂活性比为不同催化剂单位质量表面上活性中心的总数目N总值的比值;催化剂活性不仅与比表面有关,还与其活性中心分布情况、内表面利用率有关。
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With glycerol triacetate and emulsion of soyabean oil as a substrate,by determining the current responded from the microbial electrode to the substrate,the esterase and lipase activity could be determined.
应用该方法测定厌氧和好氧反应器内生物膜及悬浮污泥的酶活性时发现,测出的酶活性量大小与单位质量污泥的有机物去除负荷紧密相关。
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As an instance, compared with using aluminum alloy cylinder block, using vermicular iron block can increase the ratio of power/engine weight.
与采用铝合金缸体相比,采用蠕铁缸体可使发动机的单位质量功率提高。
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Thus it is convenient to calculate the practical balancer of the rotor of the cooling fan .
通过对内燃机冷却风扇转子不平衡的分析,得出现场动平衡过程中的单位质量影响系数,从而方便地计算出风扇转子的实际配重,此种方法简便易行。
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For the following three kinds of submerged hydropgytes, Eremochloa ophiuroides, Potamogeton crispus L and Ceratophyllum demersum, the phosphorus release amounts per g hydrophytes were high, thus the harvest should be carried out to avoid the phosphorus content in water increased caused by the release from hydrophyte during the decay period.
对于沉水植物蜈蚣草、菹草和金鱼藻而言,单位质量植物的磷释放量较高,需要及时进行收割以避免植物溶解释放引起含植物的土地处理与修复系统中水相磷浓度的升高。
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Two reasons can be explained the improvements of catalytic activities after the addition of Ce. One is the increase of the thermal stability of Ni-B and Ni-P nanoamorphous alloys, which retards the nanocrystalline Ni to aggregate during the exothermal reaction of benzene hydrogenation. The other is to make their grain sizes smaller, thus it increases the number of activity center in unit mass.
说明加入Ce提高催化活性的主要作用有两方面,一是提高Ni-B和Ni-P纳米非晶态合金的热稳定性,抑制催化苯加氢反应时大量放热促使纳米晶Ni的聚集长大;二是使生成的Ni-B和Ni-P纳米非晶态合金颗粒更为细小,从而增加单位质量样品的活性中心数量。
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The increase of both PN/TSS and the number ration of small particles showed that nitrogen (microgramme per gram particle weight) attached to small particles is more than large particles.
径流后期PN/TSS值增加和小颗粒数目比例上升表明单位质量小颗粒上的氮含量要高于大颗粒上氮的含量。
- 推荐网络例句
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The split between the two groups can hardly be papered over.
这两个团体间的分歧难以掩饰。
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This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.
这种做法不仅鼓励了更多的反应,而且减少跟风的可能性。
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The new PS20 solar power tower collected sunlight through mirrors known as "heliostats" to produce steam that is converted into electricity by a turbine in Sanlucar la Mayor, Spain, Wednesday.
聚光:照片上是建在西班牙桑路卡拉马尤城的一座新型PS20塔式太阳能电站。被称为&日光反射装置&的镜子将太阳光反射到主塔,然后用聚集的热量产生蒸汽进而通过涡轮机转化为电力