查询词典 RC

It can be concluded from the time course of emission components during the photoinhibition that light-induced destruction of pigments is a multi-step reaction which confirms our previous reports.

从发射光谱组分的光破坏时间进程推断强光破坏过程导致的色素破坏是多步反应，验证我们小组原先报导的PSⅡ-RC的多步反应特性。

In this study, based on the Rnl, extinction coefficient k, transition coefficient of canopy layer stomatic resistance K', aerodynamics resistance ra and rc calculated with the data of Rn, LAI, rsi, the daily transpiration variation of Picea purpurea, Larix principisrupprechtii, Hippophae rhamnoides ,Betula platyphylla and Populus cathayana were studied in Datong County, Qinghai Province. Comparing with the practical transpiration variation measured by Li1600 Steady Porometer, the relative error of this model was less than ±15%, and the results were stabilized and tested by precision analysis.

本研究通过对Rn、LAI、rsi的实地观测，确定了林冠截流净辐射、消光系数、冠层阻力转换系数、空气动力学阻力和冠层整体气孔阻力，对青海大通地区紫果云杉、华北落叶松、沙棘、白桦和青杨的日蒸腾过程进行了模拟，与用快速称重法订正的Li1600稳态气孔仪实测蒸腾结果对比，模拟的相对误差在±15%以内；模型敏感性分析发现，温度、LAI以及rsi是决定模拟结果的主要参数，模型对各参数变化反应不敏感。

The ductile-brittle transitions due to both temperature and torsional prestrain were discussed by means of the micoscopic parameter ln.

利用扫描电镜测量了BHW60钢、20钢和45钢拉伸试样断口心部的临界空穴扩张比Rc／Ro，并据此分析了由于环境温度和扭转预应变等因素引起的韧脆转变过程及其细观形态。

Objective To observe the clinical effect of repairing rectovaginal septum with graft of fascia flap with blood vessels.

目的探讨采用带血管筋膜瓣移植悬吊盆底与修复直肠阴道隔治疗直肠前突（rectocele，RC）的临床效果。

Based on the statistical data of seismic performance test of RC columns, two index of temporarily operational and reparably operational performance levels are put forward.

通过计算分析，表明按现行规范&小震不坏&进行设计的结构，不一定能保证&中震可修&，而按照本文提出的&中小震&进行结构抗震设计，可以保证&中震可修&。

Two familiar destroy formats, bending destroy and shearing destroy, appear to RC frame columns under seism action.

弯曲破坏和剪切破坏是钢筋混凝土框架柱在地震作用下常见的破坏形式。

The data were analyzed by chi-square test using spss 11.0 statistical analysis software package.results the sensitivity of ecg was 77.2%, specificity 50.0%, false positive rate 50.0%, false negative rate 22.8%, positive predictive value 62.7% and negative predictive value 66.8%.the positive rate of ecg rose with the increase of number of stenosed coronary vessel.

在选择性冠状动脉造影的639例住院患者中，对常规心电图检查进行chd诊断价值的分析比较。并使用spss 11.0统计软件分析包对数据进行r×c表x2检验。结果ecg检查的敏感性为77.2%，特异性为50.0%，假阳性率为50.0%，假阴性率为22.8%，阳性预测值为62.7%，阴性预测值为66.8%。

Seventeen simply supported beams with the dimensions of 150 × 250 × 2600mm include nine secondary-load reinforced concrete beams reinforced by CFRP, six RC beams strengthened with CFRP directly and two unstrengthened control beams were experimentally investigated.

本次试验共设计了17根截面尺寸为150mm×250mm，梁长为2600mm的试验梁，其中9根为碳纤维布加固的具有不同初始荷载的钢筋混凝土梁，6根为碳纤维布直接加固的钢筋混凝土梁，2根为对比钢筋混凝土梁。

Three-side fire tests of one unstrengthened reinforced concrete beam and five RC beams strengthened in flexure with carbon fiber sheets were carried out to reveal the influences of such factors as thick-layered fire coating thickness, load ratio and CFS-strengthening ratio on the fire resistance of the strengthened beams.

通过一根未加固钢筋混凝土梁及5根碳纤维布抗弯加固钢筋混凝土梁的三面受火试验，探讨厚涂型防火涂料的厚度、荷载比、碳纤维布加固量等因素对碳纤维布抗弯加固钢筋混凝土梁耐火性能的影响。

Through the test of 8 RC shear wall specimens and the computer analysis of the strains of steel bars with keyways in the spccimens, the authors have studied the remains of tensile stress of concrete between cracks after cracking and put forward a formula to calculate coefficient ψ, the ununiform distribution factor of steel strain.

本文通过8片剪力墙板的试验，用计算机对各级荷载下钢筋连续应变值的分析，找出了钢筋混凝土剪力墙板开裂后裂缝间混凝土受拉性能的变化规律。给出了钢筋应变不均匀系数ψ的计算公式。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。