使平均

The degree of control that I consider sufficient is the ability to take a cohort of mice of a strain whose normal life expectancy is three years, do nothing to them until they are two years old, and get them to live an average of three more years, i.e.

我认为足够的参照度是，把正常寿命期望值为3年的一个品种的一群小鼠搁置2年，然后使它们平均再活3年，就是说，再活它们剩余寿命期望值的3倍。

Using this method makes the designed piping have the characteristics of the synthetic minimum of energy loss construction and mainteuance costs, and excellent technical quality. It shows that the application of the method to a steam piping design can achieve saving of operating cost by about 20 percent against the design made by non-thermoeconomic synthesis method.

采用该方法进行设计，可使热网的初投资、能耗及运行维护等费用综合最小，而且具有优良的技术性能，它与不采用热经济最优综合方法的设计相比，可做到平均节省运行成本20%以上。

To reduce or remove size effect, the size classification elimination method, volume average method and normalization method based on volume were presented and the calibration and prediction results indicate that these three methods could reduce or remove the size effect effectively. The normalization method is more suit to in-line application and obtained better calibration and prediction results with the r of 0.789, 0.858 and 0.947, the RMSEC of 0.596, 0.499 and 0.313, and the RMSEP of 0.606, 0.686 and 0.413 than the results without normalization with the r of 0.716, 0.793 and 0.848, the RMSEC of 0.678, 0.592 and 0.515 and the RMSEP of 0.825, 0.764 and 0.714 for the original spectra, the first derivative spectra and the second derivative spectra with soluble solids content using partial least square method , respectively. 4. Owing to much thick skin of watermelon, contrast experiment was conducted in skin-peeled watermelon and intact watermelon to compare the influence of skin on spectra.

针对西瓜果型大且差异显著的特点，研究果型差异对可见／近红外光谱以及建模与预测结果的影响，并提出三种方法消除或减小这一影响因素，分别是分级消除法、体积平均法和基于体积的正则化方法，其中基于体积的正则化方法，更适合在线生产应用，该方法使果型大小差异明显样品的原始光谱、一阶微分光谱、二阶微分光谱在对可溶性固形物含量检测时，采用偏最小二乘法的建模与预测结果由原来的校正相关系数r分别为0.716、0.793、0.848提高到r分别为0.789、0.858、0.947，均方根校正标准偏差RMSEC由原来的0.678、0.592、0.515分别降为0.596、0.499、0.313，均方根预测标准偏差RMSEP由原来的0.825、0.764、0.714分别降为0.606、0.686、0.413； 4。

Her cumulative grade point average is 3.7 out of a possible 4.0 .which will enable her to graduate with honors .

她的累计平均成绩是3.7的4.0有可能。这将使她以优异毕业。

I've heard estimates of 7500 and 8000 in the Dow Jones Industrial Average as being minimum support levels that would cause insurers and banks to realize massive losses, causing widespread insolvencies in them and other weak sectors like commercial real estate that would irreversibly collapse the economy.

我听说有估计道琼斯工业平均指数在7500 和8000时是最低支持水平的，指数在这水平会导致保险公司和银行巨大损失，造成它们以及和其他如商业地产之类的薄弱行业广泛的无力偿付，最后将不可逆转地使经济崩溃。

Within an hour, plans have been formed to pool the neighbourhood's perishables, to keep them in one cool shared place, and to mete them out, fairly and carefully so they last as long as possible.

在一个小时内，大家就制定出了共享邻居的易腐食物的计划，将它们放到一个共享的阴凉处，仔细而平均地分给每个人以便使它们可以保持得尽可能久。

Under these circumstances, solutions are needed in order to enable a greater capacity of storing information on small and average transponders.

在这种情况下，需要解决方案，以使更有能力的存储信息的小和平均转发器。

Bonds become independent of the thickness and the crystallite sizes change negligible that the resistivity and surface energy of carbon films are about 14 Ω·μm and 28 mN/m, respectively.

厚度的变化不会使的键结改变且平均微晶大小变化不大，电阻率和表面能大约在14 Ω·μm和28 mN/m附近。

German big international land transportations and market share of taking the place of enterprises of the goods account for 34%, 10 German big international ocean shipping and goodses take the place of about 36% of occupation rate of market of enterprises.

德国各大城市都建有物流园，物流园区平均规模约140万平方米，共有1200家物流企业在物流园区落户。物流园把陆运和水运连接起来，使两大系统有机地合而为一。

Leafroll virus is almost endemic in pinot blanc and both size and general vine vigor are below average when propogated from older plantings.

卷叶病毒几乎成为了白比诺的特有病，使果穗大小和长势都低于原先种植区宣传的平均水平。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。