1.The results showed that the dietary intake of chromium for male and female students were 4.68 mg/d and 3.80 mg/d,being 23.4 and 19 times of AI(adequate intake),respectively. The dietary intake also significantly exceeded the ADI(acceptable daily intake),which is 1.0 mg/d.
结果表明,大学生膳食铬的平均摄入量男生为4.68 mg/d,女生为3.80 mg/d,分别是适宜摄入量(adequate Intake,AI)的23.4倍和19倍,也显著超过了铬的每日允许摄入量(acceptable daily Intake,ADI)1.0 mg/d。
2.The growth parameters (SGR, FCE, PER and Feed Intake) were test after fifty-four days.
54天的生长实验结束后检测每个处理组的各项生长指标(SGR、FCE、PER、Feed Intake)。 主要研究结果如下：
3.The factors influencing the intake air factor such as the intake manifold structure parameters: length, diameter and the volume of steady-pressure case were analyzed in order to increase intake efficiency. A specialized intake manifold for the multi-point injection electronic control system was designed and matched with the original engine according the requirements of assemble and techniques.
针对进气歧管的设计要求，从提高充气效率的途径入手，分析了进气歧管的长度、管径、稳压箱容积三个主要结构参数对充气系数的影响，在此基础上充分考虑到装配工艺要求及原机的实际情况及与原机的相匹配性，设计了多点燃油电控喷射进气歧管。
4.The results of selective and nonselective intake tests on farm rats and home rats with Bromchlophos 0 05 g/L of different baits showed that farm rats like to eat poison baits made of rice and wheat,their average intake rate were 23.87% and 23.39% respectively. While home rats like to eat those made of corn and wheat,average intake rate were 33.52% and 29.49% respectively.
通过用质量浓度 0 0 5g/L溴敌隆不同毒饵饵料对农田鼠类和家栖鼠类无选择性和有选择性摄食试验表明 ,农田鼠类喜吃大米、小麦毒饵 ,综合平均取食率分别为 2 3 .87%、2 3 .3 9% ,家栖鼠类喜吃玉米、小麦毒饵 ,综合平均取食率分别为 3 3 .52 %、2 9.4 9% ;
5.Abstract: A brief introduction to scientific research in the Three Gorges Project(TGP) and the applications of research achievements is given,which include treatment of newly slited layer on the foundation of the first stage earth-rock cofferdam,dumping bottom technique of river closure in deep water,construction of cut-off walls in the second stage earth-rock cofferdams,3-D computer simulation of river closure,concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete,deep sliding resistance and stability of the intake dam section,the section of the intake of the power station,the intake penstock of the power station,layout and hydraulics problems of shiplocks,stability of high slopes of shiplocks,and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700MW turbine generator units.
文摘:介绍三峡工程的科研项目，综述三峡工程开工以来的主要科研成果及工程应用情况，包括：一期土石围堰基础处理与施工技术；大江截流上下游土石围堰平抛垫底研究；二期围堰防渗工程研究；大江截流计算机科学管理；大坝混凝土浇筑方案及主要施工机械选型；混凝土的原材料和耐久性优化试验研究；大坝基础深层抗滑稳定研究；三峡电站进水口型式研究；钢衬钢筋混凝土引水管道研究；蜗壳打压、厂坝间伸缩节问题研究；永久船闸的引航道布置、输水系统及水力学、高边坡稳定、混凝土衬砌墙的结构与支护研究；特大型水轮发电机组的科学研究。
6.Nine three month old little?fat?tail sheep were randomly divided into 3 groups for gas and energy metabolism trial?In each group there were one wether hogg and two ewes lambs?The trial showed when the diatary metabolizable energy concentration was between 2300 to 2700 kcal/kgDM and the total metabolizable energy intake was between 2600 to 4800 kcal/d,the amount of CH?4 gas output was 24～33L/d and the CH?4 energy loss was 220～310kcal/d,the ratio of methane to total energy intake were 6%～9%,The methane concentration in exhaled gas was 0?10%～0?17%?The regression equations of CH?4 and total energy intake were as follows:in period 3～5months:CH?4(L/d)=8?7106+0?0052x;
试验表明，日粮代谢能浓度为2300～2700kcal／kgDM、食入代谢能2600～4800kcal／kgDM时，甲烷气（CH4）呼出量24～33L／d，CH4能（CH4E）220～310kcal／d，甲烷能占食入总能的6％～9％，呼出气体甲烷浓度约为0?10％～0?17％。 甲烷能与食入总能回归关系为：3～5月龄：CH4呼出量（L／d）＝8?7106＋0?0052x；
7.This article analyses the experimental results of the flowing characteristics rand the flow velocity distribution of the intake manifold of WH492 gasoline engines and discusses the way to improve the performance of the intake manifold, thus furnishing an important basis to designing a high performance intake manifold.
本文分析了WH492汽油机气道的流动特性和流速分布的试验结果,探讨了改进气道性能的一些措施,为设计高效率的气道提供了重要依据。
8.A brief introduction to scientific research in the Three Gorges Project(TGP) and the applications of research achievements is given,which include treatment of newly slited layer on the foundation of the first stage earth-rock cofferdam,dumping bottom technique of river closure in deep water,construction of cut-off walls in the second stage earth-rock cofferdams,3-D computer simulation of river closure,concrete casting alternatives and selection of major construction equipment for the second stage construction optimization of durability of raw materials of concrete,deep sliding resistance and stability of the intake dam section,the section of the intake of the power station,the intake penstock of the power station,layout and hydraulics problems of shiplocks,stability of high slopes of shiplocks,and optimization of the system structural anchor bars to reduce the risk of cracking in the concrete wall and 700MW turbine generator units.
介绍三峡工程的科研项目，综述三峡工程开工以来的主要科研成果及工程应用情况，包括：一期土石围堰基础处理与施工技术；大江截流上下游土石围堰平抛垫底研究；二期围堰防渗工程研究；大江截流计算机科学管理；大坝混凝土浇筑方案及主要施工机械选型；混凝土的原材料和耐久性优化试验研究；大坝基础深层抗滑稳定研究；三峡电站进水口型式研究；钢衬钢筋混凝土引水管道研究；蜗壳打压、厂坝间伸缩节问题研究；永久船闸的引航道布置、输水系统及水力学、高边坡稳定、混凝土衬砌墙的结构与支护研究；特大型水轮发电机组的科学研究。
9.[Results] the average intake and its 95% confidence limit were far below acceptable daily intake(ADI),and the dose inducing animal tumor is 55000 times to average intake and 48000 times to its 95% confidence limit.
[结果]人群甲醛的平均摄入量和95%可信摄入量均远低于每日允许摄人量(AD I值),甲醛诱发动物肿瘤剂量分别为实际平均摄入量和95%可信摄入量的55000倍和48 000倍。
10.Results show that all the geometric parameters have remarkable effects on combustion performance; the swirl of intake air generated by skew intake holes enhances fuel-air mixing, minimizes dead zone and stabilizes the flame with reverse flow, but the excessive reverse flow can cause overheat in combustion chamber and exhaust; the consistency of flow resistance in intake and exhaust system is conducive to the stability of heater performance.
研究表明，燃烧室进气孔的孔径、孔数、孔的分布及方向等均对燃烧性能影响很大；斜孔所产生的旋转进气，虽具有强化燃气混合、消除死区和回流稳焰的作用，但回流过度会使燃烧室及排温过高；保证进排气系统流动阻力（压力）的一致性，有助于保证加热器性能稳定。
