当实验种群在简单的实验室条件下建立起来时,捕食者往往会消灭它的猎物,然后自己也走向灭绝,因为没有东西可以吃。
When experimental populations are set up under simple laboratory conditions, the predator often exterminates its prey and then becomes extinct itself, having nothing left to eat.
试验在实验室条件下进行。
而且它们正不断得到改善,在实验室条件下效率可达17%。
And they are getting better, with over 17% efficiency achieved in lab conditions.
我们发现很多基因突变以后在实验室条件下没有可见的表型。
Many genes have been found that, when mutated, show no visible phenotypic effects under laboratory conditions.
在实验室条件下,进行了全褐铁矿的烧结实验研究。
In the condition of laboratory test, sintering experiments were carried out with full limonite blend.
在实验室条件下测定了盐度对柄海鞘滤水率的影响。
The clearance rate of Styela clava was determined in different salinity sea water in laboratory.
在实验室条件下用圆盘试样模拟了钢轨的接触条件。
The contact condition of rail was simulated with twin - disk in laboratory.
为了确保结果的准确性,这个脚本创建于受控的实验室条件下。
The script was created under controlled laboratory conditions to ensure the accuracy of the results.
在实验室条件下,建立了压力管道泄漏的声发射检测模型。
A model was constructed in laboratory to simulate the acoustic emission pipeline leak detection.
在实验室条件下消费者是会受价格变化影响的。对此,研究人员非常肯定。
The researchers don’t deny that consumers can be swayed by variations in sticker prices in laboratory experiments.
在实验室条件下,研究了酸性水对几种主要淡水鱼类的毒性影响。
Under laboratory conditions, the toxicity of acid water on several major freshwater fishes were studied.
在实验室条件下,矿化在四至六周内开始,并在六个月内产生全面的化学反应。
Under laboratory conditions, mineralization began within four to six weeks and had occurred extensively within months.
在实验室条件下,对热轧时温度对摩擦系数的影响进行了试验研究。
The influence of hot rolling temperature on coefficient of friction is studied in laboratory.
在实验室条件下,将生物强化技术运用于活性污泥处理焦化废水中。
In the experimental condition, Bioaugmentation technology was used to treat coking-plant wastewater in the activated sludge process.
生物工程师们广为相信的是,总有一天可以在实验室条件下创造出人。
There is a wide-spread belief among bioengineers that it will one day be possible to create life under laboratory conditions.
在实验室条件下,用厌气培养的方法测定了两种水稻土的甲烷生产力。
Methane productivity of two rice soils were investigated under laboratory condition using anaerobic incubation method.
然而,实验室条件下试验所达到的冷却速率在工业化生产中较难实现。
However, the cooling rate obtained in these tests was very difficult to do under the industrial scale.
在实验室条件下研究了冷拔与水淬火工艺对予应力钢丝力学性能的影响。
Effects of cold drawing and water quench process on mechanical properties of prestressed wires have been studied in laboratory.
实验室条件下的分离是静态分离,而工业应用条件下的分离是动态分离。
The separation at laboratory is static, and the separation in industrial application is dynamic.
在实验室条件下进行了预熔精炼渣熔化特性测定及钢水深脱硫实验研究。
The melting characteristic of premelted refining slag and deep desulfurization of molten steel are experimentally studied.
实验室条件下的结果表明,所有添加剂均能明显提高青贮饲料的青贮品质。
Results from experiments under the laboratory conditions showed all the silage additives can improve the quality of silage.
探讨了在田间及实验室条件下的土壤的有机质含量与土壤水分蒸发的关系。
This paper studies the relationship between content of organic matter and water evaporation in black soil under the condition of field and laboratory.
为了有效防治蝴蝶兰软腐病,首次在实验室条件下,进行抑制病原菌的试验。
In order to control soft-rotting of Phalaenopsis, inhibiting trials were carried on its pathogen for the first time.
在实验室条件下测定了大绒鼠和高山姬鼠在不同温度下的蒸发失水与能量代谢。
The evaporative water loss(WEL) and energy metabolism were measured in different temperatures in Eothenomys miletus and Apodemus chevrieri in laboratory.
在实验室条件下,对安徽省棉铃疫病菌的若干生物学特性及其遗传进行了研究。
Some biological characters and its inheritance of the causal organism of cotton boll Anhui were studied in vitro.
研究了利用指纹识别技术实现了身份识别,并且在实验室条件下做出了仿真实验。
Studied has implemented the status recognition using the fingerprint recognition technology, moreover has been made the simulation experiment under the laboratory condition.
为帮助确保得到足够的覆盖率,测试既在实验室条件下也在模拟的用户情形下进行。
Tests are conducted under laboratory conditions, as well as under simulated customer scenarios, to help ensure adequate coverage.
介绍了一种适用于在实验室条件下进行实验、研究与再开发的数字式温度检测与控制装置。
This Paper introduces a digital temperature measurement and control instrument, Which can be adapted for experimenting, studying and redeveloping in laboratory.
因此不论在实验室条件下,或是在实际地震勘探中分析弹性波速度时,应考虑这些因素影响。
It should consider the influences of these factors when analyzing elastic wave velocities either in laboratory condition or in practical seismic exploration.
能够在实验室条件下,进行多种电视跟踪模拟实验,为实际设备的研制提供了真实有效的数据。
Many kinds of TV tracking simulation experiments can be implemented in the laboratory, and this provides real and effective data for the development of practical equipments.
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