长期稳定性

本文介绍了用天然水样制备NO3~-N、NH3N和NO2~-N分析质量控制样的方法，试验了控制样的长期稳定性和实际应用效果。

The methods in which control sample for the nitrate-niteogen , nitrite-nitrogen and ammonia-nitrogen analyses quality are prepared with natural water are introduced and the long term stability and effectiveness of practical use of control sample are tested .

本文介绍一个用于加速器束流轨道校正的实时反馈系统，该系统采用高速浮点DSP和高性能VME实时工作站，具有满意的响应速度、高度的灵活性和长期稳定性。

The system adopts high speed floating point DSP ( Digital Signal Processor ) and high performance VME realtime work station . The system is satisfactory for response speed . It has high flexibility and good long term stability .

星载GPS自主定轨的长期稳定性

Long-Lived Assets The Stability of Autonomous Orbit Determination with Onboard GPS

对CO有良好的选择性，并且具有较好的长期稳定性。

It also has a high selectivity to CO gas and favorable long stability .

GPS系统长期稳定性好，但易受到干扰，数据更新频率低。

GPS system of long-term stability , but susceptible to interference , data update frequency low .

这些试验结果证明了GPS接收端输出脉冲信号的长期稳定性。

The result proved the pulse signal from the GPS receiver has a long time frequency stability .

Ti基底的预处理对TiO2光催化膜长期稳定性的影响

Influence of Pretreatment of Titanium Substrate on Long-Term Stability of TiO_2 Film

然而，目前DSC存在着转换效率不高、长期稳定性差等缺点，限制了它的大规模应用。

However , its low light-to-energy conversion efficiency and poor long-term reliability limit its large-scale ap-plication .

LASIK治疗远视的长期稳定性尚不能确定。

Therefore , long-term stability of hyperopic LASIK refractive corrections is uncertain .

RPC长期稳定性的研究

The study of RPC 's long-term stability

以荧光饱和吸收稳频的CO2激光作基准，测定了功率稳定后的频率稳定性，结果表明，功率稳定可改善频率的长期稳定性。

Using a CO2 laser stabilized by saturated absorption of fluoresence as frequency standard while the power stabilization loop was open or close we measured laser frequency stability .

羟基铬（HC）交联的生物瓣在植入人体后的长期稳定性也是值得我们探讨的问题。

The long-term stability of hydroxyl chromium ( HC ) cross-linking bioprosthetic heart valve is also valuable for us to probe .

声表面波（SAW）器件作为级间滤波器及天线双工器而广泛地用于便携电话和蜂窝电话的中频（IF）和射频（RF）电路，因此，解决功率持久性和长期稳定性问题十分重要。

SAW devices are widely used in IF or RF circuits of portable and cellular phones as inter-stage filters or antenna duplexers . Therefore , power durability and long-term stability are very important .

为提高发泡聚苯乙烯（EPS）工程应用的长期稳定性，分析了压缩条件下EPS的力学性能。

Mechanical properties of expanded polystyrene ( EPS ) were analyzed under compressive conditions , aimed at improving the long-term stability of EPS in engineering applications .

通过编程设计特定的调制电位&时间波形，保持连续检测的长期稳定性。这一新的生物医学传感技术可用来无创、实时、动态连续检测呼吸气体CO2和O2

Results were obtained which demonstrate that the novel biomedical sensor techniques can be used for the non invasive , real time and dynamic simultaneous monitoring of respiratory gases CO 2 and O 2

结果表明：FBG传感器具有更高的精度和灵敏度，可实现绝对数值测量，抗干扰能力强，结构简单，长期稳定性好，能实现实时、在线监测。

The results show that the FBG sensors , which can realize a real-time and on-line monitoring , have higher measurement accuracy , better interference resistance , long-term stability and simple structure .

采用GPS载波相位差分进行姿态确定，具有精度较高、成本低、体积小、数据长期稳定性好、误差不会累积等优点，但是也存在数据更新率低，受GPS信号质量影响严重等缺点。

Attitude Determination with GPS carrier phase has advantages of high accuracy , low cost , good data long-term stability and no accumulated error . But there are also updating the data rate low and GPS signal quality being serious affected shortcomings .

基于长期稳定性的考虑，比较了振动压实和静力压实的CBR值，提出了考虑CBR值的低液限粉土的压实标准。

Based on the long-term stability of the roadbed , we compare the CBR value of the two methods and put forwards the compaction considering the CBR value of the silty soil .

在众多的氧化物半导体光催化材料中，TiO2以其强氧化性、光诱导超亲水性、无毒性和长期稳定性在净化环境方面表现出重要的应用前景。

Among various oxide semiconductor photocatalysts , titania appears to be a promising and important prospect for use in environmental purification due to its strong oxidizing power , photoinduced hydrophilicity , nontoxicity and long-term photostability .

测试结果表明：线性比较好，均匀性误差在7‰以内，杂光小于1μW，重复性误差小于7‰，长期稳定性误差小于8‰。

The testing results show that the linearity is good , the uniformity error is within 7 ‰, the stray light is smaller than 1 μ W , the repeatability error is within 7 ‰, and the long stability error is within 8 ‰ .

此外，该传感器能够工作在200℃的高温环境中，有良好的长期稳定性，30d内的零点时间漂移为012%。

Moreover , it can work at 200 ℃, and has good performance on long-term stability . The offset drift is 0.12 % full scale in 30 days .

这一结果说明农业信息化水平作为农业技术进步的内生变量，可以直接而有效的促进农业TFP的增加，且这种影响作用具有长期稳定性。

These results suggest that as an endogenous variable of agricultural technological progressing factors , the agricultural informatization can to promote agricultural TFP directly and effectively , and this influence has a long-term stability .

K13合金的长期稳定性

Long time stability of K13 alloy

本文以国际时间局（BIH）1968系统为参考，对经典测时测纬仪器的长期稳定性进行了计算和比较；

The long term stabilities of the classical instruments for time and latitude observation referred to BIH 1968 system are calculated and compared in this paper .

基于Cortex-M3的硬件设计平台在功耗、速度和可扩展性方面有着独特的优势，集成度高，可靠性好，具有优异的精确度和长期稳定性，具有广阔的发展空间。

The hardware platform of the system has unique advantage in the power , speed and extensibility . It has a broad space for development .

在测点上散射份额贡献小于0·12%以及装置的长期稳定性（5个月内）不大于1·8%（±1s）。

The scatter radiation contributions at the poit of test were below 0.12 % , the long term stability of calibration apparatus was no more than 1.8 % (± 1 s ) over 5 months .

考察了AZTC脂质体在不同时间的粒径变化、渗漏率、与不同介质的配伍稳定性、过氧化值、在小鼠血浆中的稳定性及长期稳定性。

The particle diameter variation over time , leak efficiency , compatibility with different media , peroxide value , stability in mouse plasma and long-term stability of AZTC liposomes were investigated .

同时，AANA分子上的碳链可以与烷基苯磺酸钠的碳链相互作用，在不影响ASP体系的油水界面张力前提下，提高了ASP体系的长期稳定性。

At the same time , owing to the interaction between the carbon chains of AANA and alkyl benzene sulfonate , the long term thermal stability of the ASP compound system was improved under the precondition of not influencing the interfacial tension of oil / water .

通过观察共聚产物的流动性和长期稳定性，分析产物的固含量、特性粘度，考察了醇/水体积比、PVP的用量、温度等因素对共聚产物的影响。

The influence of the reaction such as the ratio of ethanol to water , the dosage of PVP , polymerization temperature to the performance of the dispersion copolymerization were investigated , by means of determination the solid and the content viscosity of product and observation fluidity and longterm stability .

AEA碱含量低，膨胀能量大、掺量小、干缩小，混凝土后期强度高，是一种高效、优质、节能的混凝土膨胀剂，具有很好的收缩补偿作用和长期稳定性。

AEA is a high efficiency excellent quality and energy-saving concrete expansion agent with low alkalinity , large expanding energy , small additive and dry shrinkage , high late strength of concrete . It has very good shrinkage compensation and long stability .