查询词典 strain

Choose vigorous and fertile strains for out-crossing. Since inbreeding is part of the strategy for setting a new strain and inbreeding often leads to reduced fertility and vigor, the fertility and vigor of the outcross strain is important.

必须选择具有活力及多产能力的鱼种来做异种杂交所需的鱼种，因为自交也是建立创造新品系鱼种的重要改鱼步骤之一，而且自交过程通常会导致鱼只生产能力及活力的降低。

In the first class there is a distinct linear region in the initial portion of the stress-strain curve corresponding to stage I in the continuous fiber composites, followed by a parabolic stress-strain curve, corresponding to stage Ⅲ in the continuous fiber composites.

在应力—应变曲线的初始部分中，第一级是一明显的线性区域，与连续纤维组织的复合材料的第一部分相对应，接下来被比喻成应力—应变抛物线，与连续纤维组织的复合材料的第三部分相对应。

The study indicated that the change of the strain of tangential bamboo appears mainly parabolic curve form, and the strain increase gradually from outside face to inside face in the thickness direction of bamboo wall in process of heating.

对四年生毛竹的弦向和径向热应变特性进行了检测和研究，研究表明在加热过程中弦向竹材的应变大体呈抛物线状变化，在竹壁厚度方向由竹青至竹黄应变呈逐渐增加趋势。

According to testing results, the stress-strain curve of the cemented soil stabilized the nanometer silica fume is fitted using a quadratic parabolic curve and expression equation for upward sector of the stress-strain curve is given.

根据试验结果，分析了纳米硅粉水泥土的变形特性，并对其应力应变曲线进行了二次抛物线拟合分析，推导了曲线上升段的表达式。

Moreover, the resistance level of the RSC strain was higher than that of the SRC strain, demonstrating that selection with more resistant hosts can accelerate the development of resistance in the parasitoid. Ratios of MFO activity in the SP, SRP and RP strains of P.

以SRP为寄主的RSC品系的抗性水平高于以SP为寄主的SRC品系的抗性水平，表明和抗性较高的寄主同步筛选，寄生蜂的抗性发展更快。

To the question of fatigue invalidating of strain gages in dynamic test(normally the zero drift value being bigger than the permissible value),the equations for calculating the fatigue life of the strain gages are derived on the basis of the fracture mechanics theory.

针对应变片在长时间的动态测试中疲劳失效(一般是测量误差超过允许值)问题，本文从疲劳断裂力学的基本理论出发，导出了应变片疲劳寿命的计算公式；实验表明，实验曲线与理论曲线吻合，这证明我们推导的公式的正确性，为应变片的疲劳寿命的预测、许可载荷的确定、失效判据的确立提供了理论基础。

Therefore, how to measure the strain field of bending for flexible polymer substrate that constitute the flexible display is an important technique. In view of the fact that traditional devices such as strain gages and photoelasticity are not suitable for measure large deformation, this study develops noncontact measurement as the first choice.

基於可弯曲性是软性显示器的最大特徵，因此如何量测构成软性显示器的软性高分子基板，在弯曲时的应变值与应变分布，为选用软性显示器构成材料时所使用的重要技术之一。

The strain of Spirulina is very important in the culture, so we filtrate the best strain S_2 from three strains S_1、S_2、 S_3 via the experiments of phototrophic batch culture and mixotrophic batch culture, and detected the empoisoning of the used medium. In the end we found no fomite, so it is highly advantageous to culture.

螺旋藻培养过程中藻种的质量非常重要，为此本试验首先从三株藻株S_1、S_2、S_3中通过光合自养和混合营养分批培养筛选出优良藻株S_2，并且对培养液进行污染检查，未发现染菌，大大的减少了工作量。

Rufa Planch could restrain the cell proliferation in the stomach carcinoma SGC7901, lymphocytic leukemia L1210, mouse neuroblastomax rat gliom hybrid NG108-15, and human hepatocellular carcinoma Bele7404 cell strain by clone cells and restrain the cell SGC7901, NG108-15 cell strain by MTT.

结果山梨猕猴桃根提取物用集落形成法R6，R8对胃癌细胞株SGC7901、白血病细胞株L1210、神经性肿瘤细胞株NG108-15、肝癌细胞株Bele7404的增殖有抑制作用；用MTT法对NG108-15，SGC7901的增殖有抑制作用。

Using a model regarding the impeller as homogeneous rotating circular with same thickness and various density,the residual strain field and plastic deformation zone size of certain supercharger impeller were calculated at 30 000 r／min over-speeding preload by means of axial symmetry plane stress elasto-plastic analysis method,and were compared with the result of resistance strain measurement method.

将柴油机涡轮增压器叶轮简化为一个均质、等厚、变密度的旋转圆盘，按轴对称平面应力弹塑性分析方法计算了国产某型增压器叶轮在30 000 r／min超速预加载后的残余应变场和轮内塑性区尺寸；又用电阻应变测量法测得超速叶轮的实际应变。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。