查询词典 sampling fraction

Proper fraction problems were more difficult than unit fraction problems.

在简单分数概念表现上，真分数问题比单位分数问题困难些。

If the calculation result is a fraction, please write down the answer in the simplest form of proper or mixed fraction, otherwise decimal figure is also accepted.

若计算结果是分数，请化至最简，并确保为真分数或带分数，或将计算结果写成小数。

The order of Fibonacci proper fraction: The row/column of the partition table is, even more amazing, exactly the order when sorting the Fibonacci proper fraction with fixed denominator/numerator.

二 正整数的分割。所有的移动步骤将正整数做了一个新的分割；此分割模k之后有良好的循环性质。费波那契真分数的排序。

The effect of various polar fractions from Psoralea corylifolia L. ethanol extract on cell proliferation and differentiation were further examined and its ethyl acetate fraction were found to be active fraction.

对补骨脂不同极性萃取物进一步进行成骨样细胞增殖和分化活性测试，发现补骨脂乙酸乙酯萃取物为补骨脂中的主要活性部分。

Global estimation of modal parameters using fraction orthogonal polynomials possesses higher precision than the general rational fraction orthogonal polynomials algorithm.

整体正交多项式识别算法利用整体最小二乘方法来辨识结构模态参数，识别精度一般高于普通意义上的正交多项式拟合算法。

The first fraction is the smallest rational number in the range, and the second fraction is the largest rational number in the range.

第一个分数是该区域中最小的有理数，第二个分数是该区域中最大的有理数。

Gscoh gs fsR, gscoh as the solid fraction when the formation of the continuous dendrite framework, fsR as the maximum solid fraction after recalescence,βs as the solidification shrinkage of the primary phase,μas the dynamic viscosity of the liquid, a as the length of L/S coexistence zone,λ2 as the secondary dendrite arm spacing, and tf as the total solidification time. High temperature recovery and recrystallization taking place in these fragments during further cooling results in the further grain size decrease.

本文通过对过冷DD3高温合金再辉过程中累积应力的计算，得到作用于初生枝晶的累积应力σs，可表示为：式中，gl是液相体积分数，gs是固相体积分数，gscoh是连续枝晶网络形成点对应的固相分数，fsR是再辉结束后固相分数，βs是快速凝固中液固收缩率，μ为液态合金的动力学粘度，a是再辉中液固共存区长度，λ2是枝晶二次间距，tf是总凝固时间，即再辉时间。

It was suggested that aging did not only influence diastolic filling period, but also influence STI. 3. With increasing age, whether at rest or during exercice, fractional shortening of minor semiaxis, mean velocity of circumferential fiber shortening, cardiac index and ejection fraction did not change, but immediately post pacing, PEP prolonged and PEP/ LVET increased in elderly group and did not change in young group. It was suggested that STI was sensitivity in detecting systolic function of LV. 4. There was a good correlation between aging and decreased compliance and diastolic function of left ventricle which was manifested by a reduction of early diastolic peak folw velocity, time-velocity integral of early diastole, 1/3 filling fraction (1/3FF)(r=-0.958,-0.875 and -0.937, P＜0.01～0.001) and a significant compansatory increase in peak flow velocity of atrial contraction, time-velocity integral of atrial contraction, the ratio between APFV and EPFV and the ratio of ATVI and Total TVI (r=0.958, 0.956, 0.966 and 0.986, P＜0.001) and the prolongation of Dec T and RFP with increasing age. It was particularly true for the subgroups above the age of 50 years.

静息状态下收缩时间间期与年龄无相关性，负荷后即刻，老年组射血前期延长(P＜0.05)，射血前期与射血期比值加大(P＜0.05)，青年组无变化，提示年龄因素亦影响STI，但由于静息状态下得到代偿，STI变化往往表现不明显。3、静息及负荷状态左室短轴缩短率、平均周径缩短率、心指数及射血分数均不随年龄增长而变化，而负荷后即刻老年组PEF延长，PEP/LVET加大，提示STI是检测左室收缩功能的敏感指标。4、随年龄增长，心房收缩期充盈峰值流速、流速积分、充盈分数及心房收缩期与舒张早期充盈峰值流速之比值显著增高(r＝0.958、0.956、0.986及0.966，P均＜0.001)，舒张早期充盈峰值流速及流速积分、1/3充盈分数(1/3FF)下降(r＝-0.958、-0.875及-0.937，P＜0.01～0.001)。

BThese two groups of students have no significant differences in their performances on the fraction assortment recognition, unit commutation and simple fraction concept.

2两组学童在分数类别辨识、单位转换及简单分数概念的表现上无显著差异。

For those students who made errors, the type 9 was found to be the most difficult case. Type 2's have shown good results in other concepts. And type 8 students have performed the poorest in the aspect of equivalence fraction, but did better in simple fraction concepts.

对犯每一错误类型的学童而言，类型九之错误类型最困难，犯错误类型二（不了解分数符号平分意义）的学童在其他概念的表现情形良好，另外八个错误类型的学童，在等值分数概念表现最差，简单分数概念表现最好。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。