查询词典 evaporation

The pull on a rising column of water in a plant results from the evaporation of water at the top of the plant.

一株植物中作用于一个正在升高的水柱之上的拉力来自该植物顶部水的蒸发。

The pull on a rising column of water in a plant results fro m the evaporation of water at the top of the plant.

一株植物中作用于一个正在升高的水柱之上的拉力来自该植物顶部水的蒸发。

A new theoretical model has been developed to describe the whole ablation process,including the effect of dynamic absorptance and evaporation.

提出了描述整个飞秒多脉冲激光烧蚀过程的物理模型，模型考虑了多脉冲烧蚀的新的特点，考虑靶材吸收率随温度的变化和蒸发效应，建立了激光烧蚀不同阶段的热传导方程，给出了相应的定解条件。

The differential eguations and boundary conditions are established, based on these hypotheses. The theoretical formulary about sample atom number with different diffusion coefficient are reasoned out; the relationship between the isotope abundance ratio and the sample wastage of melting and solid samples and the samples simultaneously at evaporation and decomposition are discussed in theory.

根据这三条假设建立了样品原子数的微分方程及边界条件，推导出了不同扩散系数的样品原子数的理论公式，从理论上讨论了熔融态、固态样品以及蒸发分解同时发生的样品同位素丰度比与样品消耗量间的关系。

Uranium isotope abundance ratio has been measured by total sample evaporation and signal integration, and a thermal surface ionization mass sepctrometry equipped with multicollector has been used.

采用全蒸发技术、离子流强度积分的方式，用多接收器热表面电离质谱计测量铀同位素丰度。

The results indicated that soil evaporation around barley root was restrained effectively in sunny day when the positive electric field was applied. If the field voltage and interval time are constant, the electric field intensity will be different under the different pole distances, and the effect of boosting plant growth will be different by restraining evaporation and moisture.

试验结果表明：晴天施加正向空间电场可以有效地抑制大麦根系周围土壤水分的蒸发，当电压及间歇工作时间保持不变时，不同异极距下其电场强度不同，表现出的抑蒸聚水促生效果不同。

Results showed that influence of splashing on desired substance caused by insufficient removal of gases and re-evaporation were minimized by the segmented condenser. The component with larger mass concentration gradient of desired substance and increasement of evaporation degree were obtained.

研究结果表明：通过分子蒸馏分段冷凝可以减少实际蒸馏过程中由于脱气不完全造成的&喷溅&现象、冷凝面分子返蒸发效应和得到质量分数梯度较大的目标组分，并可以增大蒸馏量。

The model aims at minimum annual cost (including operating cost and equipment depreciation cost) of whole evaporation system (including two sequential system——multi-evaporation system and multi-level preheating system). The tempreture of flesh vapor, the tempreture of condenser, effective heat-transfer temperature difference of vari-effect, and outlet solution temperature of vari-level preheater were both decision variables.

优化设计数学模型以整个蒸发系统(包括多效蒸发和多级预热两个序贯系统)的年总费用(包括系统年操作费用和设备年折旧费用)最小为优化目标，以生蒸汽温度T0、冷凝器中二次蒸汽温度Tk、各效蒸发器有效传热温度差Δti及各级预热器溶液出口温度tpj为决策变量。

The practical example indicates that the method used in complex countercurrent multi-effect evaporation system is fast and accurate.The vapor consumption of three-effect evaporation with condensed water flash is decreased by about 10% for condensation of NaOH solution. Loss of heat energy increases for preheating of feed with fresh vapor or extra vapor withdrawal.

算例表明：模型可用于复杂逆流多效蒸发系统的快速求解；对三效逆流蒸发NaOH溶液系统，采用冷凝水闪蒸可节省加热生蒸汽 10 %左右，节能效果显著；逆流多效蒸发采用生蒸汽或引出额外蒸汽预热原料液不仅不会节能，反而造成热能损失

Anticorrosive process of surface evaporation air cooler using LLSTD-1 as coating media,which solves two major difficult problems in large scale bundle anticorrosive techniques:performance requirements on coating materials (heat conduction,high temperature resistance,oil-proof and scale inhibition)and the coating method on surface evaporation air cooler bundles.

以LLSID-1涂料为涂层介质对大型表面蒸发空冷器管束进行防腐处理，解决了大型管束防腐的两大难题，一是对涂层材料的性能要求(耐腐、耐温、耐油、阻垢、传热效果好)；二是解决了大型管束防腐工艺(用什么方法将涂料涂装在表面蒸发空冷器管束上)。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。