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can keep
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  能保持
     The d33 of the NLO polyurethane reached 1.26×10-7 esu,and its order parameter can keep 90% for 600 h at 90℃.
     计算所得含发色侧基的聚氨酯的d33可达1.26×10-7esu,序参数φ在90℃放置600h仍能保持初值的90%以上。
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     This method may make fluorine content drop from over 8.4mg/L to 0.55-0.65mg/l, and can keep good characteristic of original mineral (hot) water.
     该法可将氟含量8.4毫克/升以上降至0.55—0.65毫克/升,并能保持原矿泉水的良好特性.
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     The experiment indicated that the purified enzyme was stable to heat below 65 and at pH 6.0-10.0.and it can keep activity 9 hours to heat 60.
     SOD在温度低于65 ,pH6.0-10.0的范围内较稳定,而且在60 仍能保持9小时的活性.
     Tests show that when 20-25g/L di-potassium EDTA is added into the bath, it can keep stable even being heated to 70-80℃.
     研究表明,若在镀液中添加20~25g/L EDTA二钾,则即使加热到70~80℃仍能保持稳定。
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     storage at 4 ℃ for two months,the enzyme activity can keep 70%.
     该酶在 4℃下贮存两个月后仍能保持 70 %酶活力
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  “can keep”译为未确定词的双语例句
     Conclusion Bone loss in tail-suspended rats occurs in the middle and distal portions of the femur, and PMES as a countermeasure against osteoporosis can keep BMD of the distal portion of the femur at a normal level.
     结论尾部悬吊大鼠股骨骨丢失发生在中段和远端,PMES可以对抗股骨远端的骨质疏松,保持正常的BMD。
短句来源
     Furthermore, it can keep the queue length of the router at a reference value using a well-designed active queue management AQM (active queue management) algorithm.
     此外,FPIP采用主动队列管理机制AQM(active queue management)检测拥塞并控制队列长度.
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     The results showed that 1200 m3/(hm2·a) exploitation rates can keep groundwater table balance and the partial centered layout pattern is better than our choices.
     不同的水井布局方案的计算表明,1200 m3/hm2开采水平下,以局部集中布井的布局形式较好。
短句来源
     ion to KPCA intrusion detection system,and utilize KDDCUP99 data to draw the artificial experiment based on the characteristic abstraction to KPCA intrusion detection system under the environment of MATLAB,the result indicates KPCA can well lower the dimensions of the data,and can keep the higher detection rate,suitable for network intrusion detection system to have relatively complicated data source and to have the data of nonlinear characteristic.
     详细介绍了基于KPCA入侵检测系统特征提取的工作原理,并在MATLAB环境下利用KDDCUP99数据集进行了基于KPCA特征提取的仿真实验,结果表明KPCA能对样本能进行很好的降维,并可保持较高的检测率,适用于入侵检测的数据源较复杂和其中存在一些非线性特征的网络入侵检测系统。
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     The simulation results show that the proposed A-EPT can keep the system auto-balancing with fast regulation, and has much better performances than conventional power transformer.
     仿真结果表明:A-EPT能够很好地实现当变压器任何一侧系统出现电压或电流不平衡时,另一侧系统仍然能够自动保持本侧系统的电压或电流平衡,并且调节过程短,比常规变压器具有更好的性能。
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     Then, the enterprise can keep;
     其中,企业能控制的资源和拥有的能力是企业持续发展的内因,是企业获得持续竞争优势的主导和动力源泉;
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     ShRNA can keep high
     shRNA化学稳定性更高,又可在体外大量合成,易于筛选有效序列。
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     and it can
     姜黄素能调节肺纤维化大鼠体内与自
短句来源
     The application of CAN
     浅谈CAN总线的应用
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     Keep on Singing
     别放弃歌唱
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  can keep
The model can keep watch on the periphery part of a scene while processing the center information of the scene.
      
The visual system of man can keep watchfulness to the perimeter of a visual field and subtly process information emerging in the center of the visual field at the same time.
      
This focus considers that each firm is heterogeneous, and it can keep that heterogeneity for a long period of time.
      
We show that the parallel memory can keep the data path fully utilized in many video coding function implementations.
      
For example, the new scheme can keep bony structures rigid during registration.
      
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In order to avoid the pollution of grain in the storage process and to alter the traditional method of fumigation with chemicals, we transform a old grain depot into a low temperature warehouse to store rice and maize. In winter, we used dry cold air to cool grain and then sealed up the storage. In summer, we adopted refrigerating machine to reduce the temperatureof grain and kept it below 20℃,thus guaranteeing in safety over the summer climate. Some data were introduced in this paper about the qualities of...

In order to avoid the pollution of grain in the storage process and to alter the traditional method of fumigation with chemicals, we transform a old grain depot into a low temperature warehouse to store rice and maize. In winter, we used dry cold air to cool grain and then sealed up the storage. In summer, we adopted refrigerating machine to reduce the temperatureof grain and kept it below 20℃,thus guaranteeing in safety over the summer climate. Some data were introduced in this paper about the qualities of the stored grain and the behaviour of insects. These data proved that low temperature storage of grain not only can keep the grain in good quality,but also restrain insects propagation and avoid po- llution.

为了防止粮食在贮存过程中的污染,改变化学熏蒸贮粮的传统方法,将旧式房式仓改造成低温贮粮仓,进行了低温贮存大米、玉米的试验研究。试验时,在冬季则利用干寒的空气对粮食进行自然冷却密闭贮存,夏季则采用人工制冷的方法对粮食进行降温,使粮温维持在20℃以下,保证了大米和玉米的安全过夏,本文还介绍了低温下粮食品质的分析,观察了害虫的活动情况,取得了一定数据。通过试验研究证明,低温贮粮不仅保持了粮食的品质和新鲜度,抑制了害虫的繁殖,还防止了污染,因此认为低温贮粮是贮存粮食的良好方法之一。

As an effective safety measure taken to prevent rock-falling in roofed tunnels or slopes,pin timbering has been widely used up to the present.Based upon the simplification and reformation of the expressions in elasticity proposed by J.Dundurs[1][2] and Flamant[3] this paper contributes the theoretical formulas(1),(2)and(3)for the superimposed stress fields due to pin timbering with a single roof bolt,a group of roof bolts and a roof bolt truss,respectively.The photoelastic experiments presenting the stress distributions...

As an effective safety measure taken to prevent rock-falling in roofed tunnels or slopes,pin timbering has been widely used up to the present.Based upon the simplification and reformation of the expressions in elasticity proposed by J.Dundurs[1][2] and Flamant[3] this paper contributes the theoretical formulas(1),(2)and(3)for the superimposed stress fields due to pin timbering with a single roof bolt,a group of roof bolts and a roof bolt truss,respectively.The photoelastic experiments presenting the stress distributions in rock mass around the anchored roof bolts have been carried out and their results are compared to the theoretical values calculated by a computer with the formulas above-mentioned,thus explaining the rock suspension mechanism of pin timbering.Such a comparison shows that the explanation of the rock-suspension mechanism of pin timbering tallies with the actual situation.In conclusion,——For bolting with a single roof bolt only,the function of pin timbering isonly that it can keep a smaller rock block around the anchored bolt at its original position and keep its fabric intact by compressive stress transmission.——For bolting with a group of roof bolts,the stress distribution in rock mass due to pin timbering can be efficiently improved.The stress field may be divided mainly into three different parts(see Fig.9),i.e.the arched region of tensile stress Ⅰ,the compressive stress region Ⅱ and the secondary tensile stress regionⅢ Region Ⅱ is helpful to improve the rock intensity and to stabilize itself,but the arched region Ⅰ shows a risk of rock failure and,therefore,focuses our attention on the preventive maintenance to it.——For the roof bolt truss,stress analysis shows that the superimposed stressfield close to the rock surface due to pin timbering is further improved and the rock block within a reasonable span of truss always remains in a compressive state.Even if the roof bolt truss exerts a relatively smaller compressive force,the compressive strength in the rock mass parallel to the rock surface may be considerably improved.Moreover,the effect of the bolting inclination of truss on the stress distribution in rock mass is also discussed.

为了对锚杆支护设计提供理论依据,本文利用J.Dundurs公式算出了单支锚杆,成组布置锚杆和锚杆桁架在围岩中引起的附加应力场的理论解,(1)、(2)、(3)式。经光弹实验结果分析,证明理论解是正确的。 根据电算的理论解的应力值,文章探索了单锚杆,成组布置锚杆和锚杆桁架的支护机理。并讨论了各种支护参数的选取原则。 本文还讨论了锚杆桁架倾角对压应力分布的影响,认为在锚杆桁架跨度确定后,存在一个最优倾角使压应力值为最大。

The freshly harvested mushrooms, subjected to 50-100 KR of 60Co r-irradiation, under the house stemperature (16-21℃) and low temperature (4-10℃) were demonstrated marked effects of fresh preservation. Under the house temperature conditions more than 95% of mushrooms, subjected to r-irradiation, were preservated their fresh state for 6 days, and the veils were not broken.Which is best in the conditions of 100 KR irradiation.The unstreatment mushrooms(control)began break their veils by the third day after the...

The freshly harvested mushrooms, subjected to 50-100 KR of 60Co r-irradiation, under the house stemperature (16-21℃) and low temperature (4-10℃) were demonstrated marked effects of fresh preservation. Under the house temperature conditions more than 95% of mushrooms, subjected to r-irradiation, were preservated their fresh state for 6 days, and the veils were not broken.Which is best in the conditions of 100 KR irradiation.The unstreatment mushrooms(control)began break their veils by the third day after the experiment.Under the low temperature (4-10℃)conditions the duration of fresh preservation prolongated to 20-40 days,the unbroken veils reached 100%. The 50-100 KR r-irradiation can inhibite the activity of mould fungus.The paper boxes full of holes are the best material for the mushrooms which are kept fresh after irradiation.The second best material for package is the cotton yarn bags. The can keep the fresh mushrooms dry, clean and white and keep their good form.But the poly-ethlene plastic bags are the worst for keeping fresh because they make the mushrooms mud and turn to brown and black.There is liquid in the bage.The results from analysis of nutritional elements(Proteri-,Fat,car-bonbydrate,vitamine,water)of irradiated mushrooms shoued that they not losed-their nutritional value.The irradiated mushrooms were tasted by about 60-100 cooks, staffs and workers from 1978-1981.They all considered that the irradiated mushrooms were all in gay colour,fragrant,very dilicious and had no unusual smell,

经5—10万伦~60钴丙种射线辐射的新鲜蘑菇,在室温16—21℃和在低温4—10℃条件下,有明显的保鲜效果。在室条件下,可使蘑菇在6天内保持95%以上不破膜、开伞,以10万伦为最佳。对照组第三天即开始破膜开伞。在低温4—10℃条件下,可使保鲜时间延长至20—40天,100%不开伞,5—10万伦有抑制霉菌生长的作用。 辐射保鲜蘑菇的色装材料,以有孔的纸盒为最好,其次是纱布袋。它们保鲜的蘑菇干爽、洁白、形状好;而聚乙稀/尼龙薄膜效果最差,保鲜的蘑菇为粘稠,色褐黑,袋内有液体。 经过分析辐射保鲜蘑菇的营养成份(旦白质、脂肪、碳水化合物,维生素、水分)没有损失。辐射保鲜的蘑菇从1978—1981年经名厨师和各种工作人员约60—100人的品尝,一致认为,辐射的蘑菇色、香、味皆好,无异味。

 
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