be a strain

be a strain的基本解释

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吃力, 吃劲

与be a strain相关的网络例句 [注：此内容来源于网络，仅供参考]

The prior cycles with higher axial stress and larger strain range greatly restrains ratchetting strain of subsequent cycling with lower ones. Creep behavior plays an important role in the ratchetting strain and its influence on ratchetting behavior can not be neglected. Fracture morphology characteristics of two kinds of materials were investigated by scanning electron microscope. It shows that failure of material A is induced by cavitation and that of material B is induced by decohesion. For material A, with the decreasing strain amplitude the fracture surface shows more larger diameter globular particles under uniaxial loading and can be seen more obvious and deep crack under multiaxial loading. However for material B, with the decreasing strain amplitude fracture surface shows larger and larger scalelike shape and becomes more smooth under uniaxial loading, but fracture surface under multiaxial loading looks like more smooth than that of uniaxial loading, and shows gradually wave-like morphology.

通过扫描电子显微镜研究表明：材料A为空穴引起的失效，材料B为剥离导致疲劳破坏；随着载荷幅值的减小，材料A在单轴载荷下，断口表面浮出更多更大直径的球状颗粒，而多轴载荷下，可以看到很深的裂纹；随着载荷幅值的减小，材料B在单轴载荷下，断口表面鱼鳞片越来越大，表面越来越平整，而多轴载荷与单轴载荷相比，断口表面看上去更加平整，并且随着载荷幅值的减小，断口逐渐呈现波浪形貌；通过微观的傅立叶变换红外光谱分析，结果表明随着应变幅值的增加，无论载荷是单轴还是多轴状态下，橡胶材料吸光度比值随着幅值的增加而增加，这说明体系中的结晶含量也随之增加。

Six experimental stages were designed in our procedure, those are:(1) metabolite recovery and tested sample preparation: the metabolites were recovered by Amberlite XAD-2 absorption, followed by MeOH elution and solvent concentration;(2) antioxidant detection and strain selection: samples were quantitatively analyzed by the inhibition effects on formation of lipid peroxides and TBARS to screen the strains able to produce antioxidants. According to the established screening methods, we chose out a strain of actinomycetes, designed as AMBL-029C;(3) antioxidant purification: the fermentation broth was recovered by a series of separation techniques including centrifugation, Amberlite XAD-2 absorption, followed by MeOH elution and a successive TLC purification. The resulting primary purified compound [temperately designed as AMBL-029C-TS] was further analyzed by HPLC to monitor its purity;(4) physical-chemical characteristics: judging from the acid-base fractionation experiments, and the pH and temperature stability tests, the compound was deduced to be a acidic compound with the properties of low polarity and highly pH and temperature stable;(5) mechanism of the antioxidant: in comparison with some other known antioxidants, TS was subjected to investigate its antioxidant mechanism, together with BHT,-tocopherol, as well as two streptomyces metabolites, homogentisic acid and -phenylpyruvic acid, which were previously isolated as the natural antioxidants in our laboratory.

针对本实验目的，我们设计了以下的实验步骤﹔（1）二次代谢物回收及检测样本处理：我们将发酵所得的培养上清液，利用疏水吸附性树酯Amberlite XAD-2吸附回收，并以甲醇溶离及真空减压浓缩脱水等方式处理，以取得提供抗氧化活性筛选之检测样本；（2）抗氧化活性检测及菌种筛选：以「过氧化脂质」和「硫丙二醯尿」的生成量进行定性定量分析以作为抗氧化物质生产菌筛选之用；经此筛选程序，我们选获了具有抗氧化物质高生产力的菌株，命名为AMBL-029C；（3）抗氧化物质的分离纯化：针对生产菌株的发酵回收处理液，以矽胶薄层色层分离法经物质层析纯化后，并以高效能液相层析法(High performance liquid chromatography；HPLC)分析物质可得一初级纯化物质，命名为AMBL-029C-TS；（4）抗氧化物质的物理化学性质分析：由酸碱转溶（acid-base fractionation）实验得知，此抗氧化物质属於中低极性的强酸性物质，对温度（37℃-100℃）及酸碱度（pH3.0-13.0）均表现出高稳定性；（5）在抗氧化机制探讨方面，我们针对数种不同的抗氧化机制进行探讨，即： 1。

Additionally, one SsDRV-free strain Ep-1PNA183av that showed hypovirulence was isolated from a mutant of healthy strain Ep-1PNA183, this strain also immunizes the infection of SsDRV, it would be a valuable material to study on the interaction between SsDRV and its host. Surprisingly, we discovered that SsDRV could be transmitted into S. nivalis (in the same genus to S. sclerotiorum) when cultured side by side on PDA plate, this discovery may supply new evidence for the exchange of genetical elements among different species in fungi; the transmission of mycovirus to other species showed that the limitation of vegetative imcompatiblity among different strains might not be key factor to determine the efficiency of biological control with hypovirulence associated mycovirus.

发现了1株不携带SsDRV的核盘菌弱毒力菌株，该菌株对SsDRV具有显著抗性，是研究SsDRV与寄主互作的宝贵材料；还发现SsDRV可以在核盘菌种间传递，深入研究将为生物在种间的遗传物质交换提供了新的证据，也将为广泛利用弱毒相关病毒控制植物病害提供理论依据。

与be a strain相关的网络解释 [注：此内容来源于网络，仅供参考]

put sb. at a disadvantage：使某人处于吃亏的地位

● 使某人处于吃亏的地位 put sb. at a disadvantage | ● 他吃亏吃在太自私上. It is to his disadvantage that he is too selfish. | ● 吃力 entail strenuous effort; be a strain

Leg Cramp：肩坚硬

扭筋 strain ; sprain | 肩坚硬 stiffness in a shoulder ; a stiff shoulder ; a cramp in the calf ; leg cramp | 抽筋 have a cramp ; be cramped

Right heart strain. He's still not oxygenating：右心室负荷过重 仍没供氧

How am I supposed to know? I'm not there!|我咋知道? 我又不在那儿! | Right heart strain. He's still not oxygenating.|右心室负荷过重 仍没供氧 | Must be a pulmonary embolism.|肯定是肺栓塞了