基因的突变与损伤后修复微生物的遗传与变异 彷徨试验(fluctuation test) 影印试验(replica plating) 基因转移(gene transfer)： 外源性的遗传物质由供体菌进入某受体菌细胞内的过程。
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德尔布吕克和卢里亚共同进行的一项著名试验称作为“波动试验”(fluctuation test)，该论文的标题是《细菌从抗病毒性到对病毒敏感性的突变》。这项试验的设想是从发现耐受性宿主菌体而产生的。
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pressure fluctuation test 压力脉动试验
The Fluctuation Test 波动实验
Ames fluctuation test Ames波动试验
bacterial fluctuation test 细菌波动试验
the ames-fluctuation test ames波动试验
Voltage fluctuation immunity test 电压波动抗扰度试验 ; 电压波动防护试验
In this paper, it is introduced to the influence of cavitation factor, measurement taps, sampling frequency and sampling time on the test result in pressure fluctuation test of the water turbine.
介绍了水轮机压力脉动试验时空化系数、测量位置及测点、信号采样频率及采样时间等因素对试验结果的影响。
The RF pulse-to-pulse phase noise through microwave test circuit becomes a VF pulse signal of random fluctuation.
射频脉间相位噪声经过微波检测电路、视频电路后变成随机起伏的视频脉冲信号。
The test results showed that the influence of drawing ratio, speed and temperature on the tension, tension fluctuation and irregularity of the fiber were obvious.
结果表明，拉伸比、拉伸速度和拉伸温度对纤维张力、张力波动和不匀率均存在着明显的影响。
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