空气中的水蒸气含量变化很多。
降低压缩空气中水蒸气含量的这两种方法也有助于降低压缩空气中的油含量。
Reduce the water vapor in the compressed air of the two methods can also help reduce the oil content of compressed air.
叙述了乙烯氧化制环氧乙烷反应气中水蒸气含量对银催化剂反应性能的影响。
The influence of concentration of feed water vapor in process of ethylene oxidation on performance of silver catalyst was described.
如果温度一定，空气中的水蒸汽含量与不饱和状态下最大水蒸气含量就有相对关系。
The amount of water vapor in the air relative to how much water vapor the air can "hold" before saturation occurs at a given temperature.
仪器携带和使用方便，工作可靠，是红外天文选址和大气水蒸气含量监示的有用工具。
The instrument is easy to use and handle, and useful in infrared astronomical site-selection. And it can also be used for monitoring of...
烟气中的水蒸气含量较大时，计算过量空气系数应先将湿烟气含氧量修正为干烟气含氧量；
When the vapor content in gas is higher, the oxygen content of dry gas should be corrected to the oxygen content of damp gas before calculating the excess air coefficient.
压缩空气干燥器的目的在于降低压缩空气中水蒸气含量，以避免压缩空气管线中发生液态水冷凝。
The purpose of compressed air dryer is to lower water vapor in the compressed air, in order to avoid the compressed air in the pipeline happened liquid water condensation.
然而，由于压缩空气干燥器的主要目的仅仅是降低气流中的水蒸气含量，因此干燥器的除油能力很难确定。
However, due to the compressed air dryer's main purpose is to reduce the air only water vapor, therefore dryer oil removal ability is difficult to determine.
干燥器中压缩空气的水蒸气含量用压力凝露点表示，即在特定压力的空气管线系统内压缩空气不发生凝结的最低温度。
The compressed air drying of water vapor pressure points with any expressed as the air pressure in particular piping system of compressed air does not occur within the lowest temperature setting.
例如，温度的升高会增加大气中的水分含量，这又会导致进一步的变暖，因为水蒸气是一种温室气体。
An increase in temperature, for example, can boost the moisture content of the atmosphere, which then causes further warming because water vapor is a greenhouse gas.
所余废硫酸再经过水蒸气蒸馏处理使其中三氯乙醛含量降低到一定标准后可用于农肥生产。
The remained waste sulfuric acid was vapor distilled to reduce the chloral content so that it could be utilized in fertilizers product.
本文利用自主设计的大空间凝结换热实验台，对水平光管和三维肋管管外高不凝性气体含量水蒸气的凝结换热性能进行了实验研究；
In the past decades, little efforts has been done on the investigation of condensation of steam in the presence of high content non-condensable gas due to its complication.
对于溅射微晶涂层，水蒸气的含量只影响氧化增重。
However, the water vapor content has only effect on the mass gain of the microcrystalline coating.
经验告诉我们，温度每升高200f，空气中水蒸气的含量将提高1倍左右。
Experience tells us that temperature rise every 200 f, the content of water vapor in the air will improve 1 times or so.
介绍烃类水蒸气转化制氢工艺对原料的要求，加烯烃、芳烃、硫、砷和氯等杂质的含量，以及轻油的干点等。
Feedstock demands meeting hydrocarbon steam reforming process including impurity contents of olefins, aromatics, sulfur, arsenic and chloride, as well as dry point of light fraction were introduced.
介绍了非临氢降凝高焦炭含量催化剂采用水蒸气-空气再生的工业实践经验。
The industrial practice of the regeneration of spent catalyst with high coke content is presented.
对油樟叶精油化学成分及其在水蒸气蒸馏过程中含量变化情况进行了研究。
Chemical components of leaf essential oils from Cinnamomum longe-paniculatum and the change of contents of these components during steam-distillation process were studied.
采用水蒸气蒸馏法研究了中国和日本各地的33份紫苏试材芳香油的含量。
The aromatic oil in 33 samples of Perilla collected from China and Japan is studied by using steam distillation.
方法采用水蒸气蒸馏法获得挥发油，经GC - MS技术结合计算机检索对其化学成分进行分离和鉴定，用色谱峰面积归一化法计算各组峰的相对含量。
METHODS The oils were extracted by steam distillation. The chemical compounds were separated and identified by GC-MS. The relative content of each component was determined by area normalization.
方法水蒸气蒸馏法提取挥发油后，采用气相色谱-质谱法分析，用峰面积归一法测定成分的相对含量。
MethodsEssential oils were extracted from samples by steam distillation, The chemical constituents were determined by GC-MS with area normalization method.
本文研究了在镀膜过程中真空室内水蒸气的含量对HfO2薄膜物理性能的影响。
The influence of water vapor content in high vacuum chamber during the coating process on physical properties of HfO2 films was investigated.
方法采用水蒸气蒸馏法提取广西匙羹藤叶挥发油，并用GC-MS法分离分析其成分及相对含量。
Methods The volatile oil chemical compositions of leaf of Gymnema sylvestre(Retz. )Schult were extracted by water vapor distillation, and then were separated and identified by GC-MS.
不同生姜提取物挥发性成分的含量和组成均在差异，水蒸气蒸馏得到的姜油轻挥发性组分的含量相对较高。
The content and the composition of volatile components of different ginger extractions were different. Ginger oil obtained by steam distillation had highest content of light volatile components.
目的GC-MS联用技术比较水蒸气蒸馏法提取薄荷挥发油和薄荷顶空气体的化学成分及相对含量。
Objective To compare the chemical components and their relative contends of volatile components extracted from Mentha haplocalyx Briq. by the methods of SD and HS.
目的GC-MS联用技术比较水蒸气蒸馏法提取薄荷挥发油和薄荷顶空气体的化学成分及相对含量。
Objective To compare the chemical components and their relative contends of volatile components extracted from Mentha haplocalyx Briq. by the methods of SD and HS.
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