查询词典 deposition

ER took part in cell wall material deposition during endosperm cell construction. ER rounded up matrix forming endocytic vacuole. ER cisterna swelling and accumulating starch developed into amyloplast. ER took part in protein synthesis and deposition, played a core role in protein body formation. ER swelled at the end to form many vesicles. ER was associated with the plasmodesmata, helped transporting nutrients at the development and differentiation stage.

内质网参与胚乳细胞构建中细胞壁物质的积累；内质网包裹基质形成吞噬体，为胚乳的发育提供营养；内质网槽库膨大，积累淀粉转变成淀粉质体；内质网参与蛋白质的合成与积累，在蛋白体的形成中处于核心地位；内质网末端节状膨胀，形成潴泡；灌浆高峰期内质网常与胞间连丝相连，有助于物质的运输。

It is the first time that no additional anode was adopted in the magnetic macroparticles filter. At the same time the auto-re-igniting system was designed for vacuum cathodic arc deposition instrument. It ignites the arc with an electronic component with high voltage and can auto distinguish weather the arc dies out or is on during the deposition via a main power supply feedback unit. The energy for igniting the arc is very less and thus can successfully prevent the film being contaminated.

设计制造的电子式真空阴极弧离子镀引弧器成功地实现了高压脉冲引弧，可以多次重复使用，所用能量较小，可以有效防止对所镀膜的污染，引弧可靠，能够自动识别电弧是否引燃，能够在熄弧后自动重新引弧，重新引弧的速度快，有效防止了熄弧引起的气压波动，使镀膜过程中气压非常稳定。

Analysis compared with different expression of temperature distribution on deposition and non-deposition in the tested inside-wall of pipeline,a nondimensional temperature function was founded to get a conclusion according to energy equation.Referring to Bessel function,a calculation equation of temperature distribution in the surface and heat-flow density of wax deposit layer in the laminar flow is deduced,as well as temperature distribution inside.This method provides a theoretic basis on the theory law o...

通过对试验环道上测试段相关数据的测试，对比分析测试段管壁有沉积物和无沉积物时测试段管壁内温度分布的不同表达式，根据能量方程建立了无量纲温度分布方程，利用贝赛尔函数推导出原油在层流状态下沉积层表面温度分布、沉积层热流密度、油流温度分布等相关温度场的计算公式，为研究蜡沉积规律，定性分析管路结蜡层厚度和制定合理的清管方案奠定了理论基础。

The effects of degree of carbon deposition and regeneration,catalyst impurities,iso butylene impurity in feed stock as well as operational parameters on carbon deposition of W 201 catalyst for oxydehydrogenation of butene to butadiene have been studied.

从工业应用出发，研究了丁烯氧化脱氢制丁二烯W－201催化剂的结炭数量及再生、催化剂杂质元素分析、原料中异丁烯杂质及操作参数对催化剂结炭的影响等。

After increasing substrate bias voltage, the deposition rate increased and the deposition process changed into cumulate mode.

随着单体通入量的提高，薄膜上的颗粒变得密集，易团聚，对薄膜的均匀性有很大的破坏，导致成膜结构的不稳定。

The experimental results show that the deposition rate and optical properties of TiO 2 films depend on deposition conditions.

实验结果表明：沉积条件是影响TiO2膜的沉积率和光学性质的重要因素。

The model can be used to calculate the rate of paraffin deposition and the growth rate of deposition thickness.

对影响油井结蜡剖面的各因素进行了敏感性分析。

This paper introduces some fundamental principles of the Fused Deposition Modeling in Rapid Prototyping, and analyzes the factors influencing the prototype surface quality from two parts, which include the choice of prototyping direction and the prototyping parameter. Based on this, in response to these common quality problems in Fused Deposition Modeling prototyping, this paper puts forward some methods to improve quality.

介绍了快速成型技术中熔融沉积制造的基本原理，从成型方向的选择和成型参数两方面分析了影响原型表面质量的因素，并针对熔融沉积制造原型常见的表面质量问题，提出了改善质量的措施。

To control the film growth,severalmethods based on energetic particle(atom and/or ion)depositions,e.g.,ion beam assisteddeposition,sputter deposition,accelerated molecular beam epitaxy,and energy-filtered ionbeam deposition,etc.,were developed in the past few years.

载能粒子沉积是以离子束技术和常规薄膜制备技术为基础而发展起来的一类具有广泛应用前景的薄膜制备方法，但受研究手段的限制，人们对载能粒子沉积的薄膜生长机制一直缺乏比较全面、系统的了解。

Kalium and natrium erode into brick at a high temperature in the form of simple substance and result in expansion in self-baking carbon brick, and molten alkali metal oxides adsorbed on the face of brick react with SiO2 and obtain a eutectic mixture which causes expansion at a high temperature, while carbon deposition caused by the reaction of CO and simple substance of kalium and natrium as well as the soot deposition of CO contribute to the lower temperature expansion.

结果表明：膨胀率及碱含量都随温度和时间的增加而增加，膨胀率受时间影响较大，达到8%左右，而受温度影响较小，仅为1%左右；砖内K， Na元素质量分数受时间和温度的影响均较大，分别达到4.5%，5.33%，4.28%，4.46%，且Na侵蚀较K严重；在高温下K， Na是以单质形式侵入砖体内，而熔融碱是吸附在砖体表面并与SiO2：生成低共熔化合物引起高温膨胀，在低温下砖内K，Na单质与CO发生C沉积以及CO发生烟碳沉积反应引起低温膨胀。

More direct, directer ; most direct, directest

径直的，笔直的

Do you know how to use a chain saw?

你知道如何使用链锯吗？