使平均

Expeller, pressure-relief cover and shaft sleeve are made of wearable material, which are of low maintenance, long life

付叶轮、减压盖、轴套均采用耐磨材料制造，维修量少，使用寿命长，使整机平均无故障工作时间MTBF大大提高。

Expeller, pressure-relief cover and shaft sleeve are made of wearable material, which are of low maintenance, long life for use and greatly improve MTBF

付叶轮，减压盖，轴套均采用耐磨材料制造，维修量少，使用寿命长，使整机平均无故障工作时间MTBF大大提高。

The Pd-Cu/C catalysts were shown to have the face centered cubic crystal structure. This could indicate that the addition of Cu shortened the Pd-Pd distances in the crystal lattice, and therefore –HO(subscript 2ads) and O-O could be better adsorbed on the surface of the catalyst. When NaBH4 was used as the reducing agent, and the atomic ratio of Pd to Cu was 3:1, the resulting catalysts had an average particle size of 3. 4nm and showed the best catalytic performance. The electrochemical active surface are a of Pd3Cu/C was 38.9m^2/gPd and the oxidation reduction reaction activity of the Pd3Cu/C catalyst was much higher than that of the Pd/C catalyst. The electrochemical activity of the Pd3Cu/C catalyst was comparable to that of a commercial Pt/C catalyst.

结果表明：催化剂中Pd与Cu的物质的量之比与预设值相近，Pd和Cu基本被全部还原；Pd-Cu/C催化剂为面心立方结构，元素铜的加入使催化剂的Pd-Pd间距缩小，从而HO(下标 2 ads)和OO键能更好地吸附在催化剂金属表面；当采用NaBH4为还原剂，Pd与Cu物质的量比为3：1时，催化剂(Pd3Cu/C)的平均粒径为3.4 nm，催化剂的催化性能最好，电化学活性表面积EAS达到38.9平方公尺/gPd，电化学性能较Pd/C催化剂有很大提高，接近Pt/C商用催化剂。

Automatic Testing and Fault Isolation can make the MTTR of system be reduced, or enhance the availability of system.

通过自动检测和隔离故障，使系统或设备的平均维修时间显著减小，提高系统的可用性；同时减少维修人员的数量、降低对维修人员技术水平的要求，进而降低使用及保障费用。

Three years guarantee against natural chip, peel, flake or colour loss.Average wear out period is eight years.

处理后之洁具表面，在正常情况下使用，使证三年内不会褪色及剥落或龟裂，适当护理之翻新洁具平均使用期约八年之久。

It is found that from bond population calculation results, the bonding strength of Al—O bond of faces (011) and (011) of gibbsite are stronger than that of face (001). If the proportion of unfold of (001) surface is decreased and the proportion of unfold of (011) and (011) surfaces is increased to same possible extend, the bonding strength of Al—O bond of gibbsite would be more strong.

键布居分析结果表明，整体上氢氧化铝的(001)面的Al—O键的结合力不强，(011)和(110)面的Al—O键的平均键布居数较高，结合力较强；若小幅度降低(001)面的显露比例，并使(110)和(011)面较多显露，就有可能提高氢氧化铝表面的Al—O键的结合力。

It uses them to gnaw at the sides and bottom of its channel,gradually loosening more earth.

这种不断的移地填海，正在使美国海拔以上的平均高度，以每9，000年减少1英尺的速度下降。

Moreover, it is worse for deterioration of water quality and raising in hardness and sulfate and other poisonous substance in ground waters.

不幸的是，由于过度开采地下水和采煤疏干，使地下水位持续性下降，娘子关泉群流量由多年的平均12.13m〓/s减少至近期的9.07m〓/s，更为严重的是，水质恶化、硬度和硫酸盐超标，以及其它毒性物质增高，生态环境恶化。

Within 3 years, Schoen has the hospital earning HMA's average return on equity of 21 percent.

三年之内，Schoen就能使这些收购的医院取得和HMA's相同的21％的平均资本利润率。

The balance lamp current can homogenize the brightness of each lamp.

当各个灯管内的电流趋近於平衡时，能使各个灯管的亮度平均。

What are your goals and strategies for growth?

你的成长目标和策略是什么？

And unto the angel of the church in Sardis write; These things saith he that hath the seven irits of God, and the seven star I know thy works, that thou hast a name that thou livest, and art dead.

3：1 你要写信给撒狄教会的使者，说，那有神的七灵和七星的，说，我知道你的行为，按名你是活的，其实是死的。