Nuclear DNA was successfully extracted from a 13,000-year-old emu eggshell and a giant moa eggshel.
细胞核DNA成功地从一只1.3万年前的鸸鹋蛋壳和一只巨大的恐鸟蛋壳中被提取出来了。
Big extinct birds such as the giant moa, thunderbirds and elephant birds all left eggshells behind them.
像恐鸟、雷鸟和象鸟这样已经灭绝的鸟类都留下了它们的蛋壳化石。
Genetic material was pinpointed for the giant moa and 10ft tall, half tonne elephant birds that died out hundreds of years ago.
提取的基因信息进一步证实，“摩亚”恐鸟以及重达半吨、高近10英尺的象鸟也就灭绝于数世纪前。
Using new techniques we obtain DNA signatures from a variety of fossil eggshells, including the extinct moa and elephant birds and 19, 000-year-old old emu.
我们还利用新技术检测了各类蛋壳化石，包括已灭绝的摩亚、象鸟以及19000年前的鸸鹋蛋壳，并从中获取了DNA签名。
Nuclear DNA was also successfully extracted from a 13,000-year-old emu eggshell and a giant moa eggshell – something has proved difficult with fossil bone samples.
从一只13，000年前的鸸鹋蛋蛋壳和一只恐鸟蛋中也成功提取出了细胞核DNA，这件工作依靠骨骼化石样本是很难完成的。
So the regularly inspection and maintenance on MOA is indispensable.
因此，对氧化锌避雷器的定期检查和维护必不可少。
A new model of leakage current tester of MOA (metal oxide arrester) is introduced.
介绍了一种新型MOA(金属氧化物避雷器)泄漏电流测试仪的研制。
MOA; voltage deviation; finite element; partial capacitance; potential distribution.
氧化锌避雷器；电压偏差；有限元；部分电容；电位分布。
MOA; valve piece; resistive current; infrared detection; frequency reference voltage.
氧化物避雷器；阀片；阻性电流；红外检测；工频参考电压。
A new application of BP neural-network to MOA fault diagnosis is introduced in this paper.
介绍了BP神经网络在MOA故障诊断中的应用情况。
Objective Exploring Construct Validity of Mutuality of Autonomy Scale(MOA)in Rorschach Test.
目的探讨罗夏测验自主同一性量表的结构效度。
The quantity of MOA installed in UHV substation should be increased to suppress the lightning invaded over-voltage.
特高压变电所应适当增加MOA数量，以减小雷电侵入波过电压。
Now there are some methods of MOA testing such as regularly de-energized testing, energized testing and on-line monitoring.
目前，检测避雷器的方法主要有周期性停电预试、带电测试和在线监测等。
Mean while, a new method of measuring the resistive cur-rent by means of collecting the signal only from MOA was introduced.
同时，还介绍了一种只从氧化锌避雷器取信号测量阻性电流的新方法。
The cylinder core forming technique is a key measure on which the technical behavior and cost of MOA polymeric housing depends.
芯体成型工艺是决定复合外套MOA的技术性能和成本的关键。
Measuring the resistive current of MOA is very important for checking whether MOA is damped and indicating the service status of MOA.
测量moa的阻性电流，对于反映MOA是否受潮以及其运行状态具有重要意义。
MOA-2007-BLG-192-L b, or more succinctly MOA-192 b, may not have the catchiest name in the galaxy, but it's an interesting planet nonetheless.
MOA- 2007 -BLG - 192 -Lb也可以简称MOA - 192 b。或许名字算不上朗朗上口，但仍然是很有意思的一颗行星。
Based on analysis it is considered that the development and test of HVDC MOA are very complex in contrast with relatively maturation HVAC MOA.
分析认为，与相对成熟的交流金属氧化物避雷器相比，直流金属氧化物避雷器的研究和试验较复杂。
The functions of this meter include RLC meter, dielectric loss angel meter, MOA meter, electric meter, direct-resistance meter and check gauge.
该测试装置能够完成的测试功能相当于：RLC测试仪、介质损耗角测试仪、MOA 测试仪、电气参数测试仪、直流电阻测试仪以及电表校验仪。
Paper covers temporary overvoltages, second arc current, switching overvoltage, major parameters of MOA and insulation level of UHV AC apparatus.
主要内容包括：工频暂时过电压，潜供电流，操作过电压，金属氧化物避雷器主要参数，特高压电气设备的绝缘水平等。
The treatment method for stress suspended conductor in static electric field and its application in stress distribution calculation of MOA is presented.
介绍了静电场中电位悬浮导体的处理方法以及它们在氧化锌避雷器电位分布计算中的应用情况，并分析了各种方法的优劣。
These factors including distribution of circuit breakers closing Angle, rated voltage of MOA and the insulation level of transmission line are considered.
同时还研究了断路器合闸相位角分布规律、MOA的额定电压、线路绝缘水平等因素的影响。
Practice shows that the sealing reliability of MOA have been enhanced by using the double sealing and excluding traditional arc-isolating cylinder and FRP rode.
实践证明，采用双重密封结构，取消传统MOA中的隔弧筒和引拔棒，提高了MOA的密封可靠性。
Measurement of metal oxide arrester (MOA) on line has a great advantage than off line, but its main defect is apt to be disturbed by running equipment all around.
带电测量金属氧化物避雷器持续电流具有停电测量无可比拟的优势，但周围带电设备对测量结果的影响是带电测量方式最大的缺点。
MOA is a newly developed protector in power system and has very good non-linear characteristic, which makes it gradually become the substitute of the SiC arrester.
金属氧化物避雷器(MOA)是一种新型保护器，具有非常好的非线性，在电力系统中得到广泛的运用，正逐步取代系统中的炭化硅避雷器。
Measuring resistive current of metal oxide arrester according to the service voltage is important to check whether MOA is damped and to indicate service status of MOA.
在运行电压下测量金属氧化物避雷器的阻性电流，对于反映MOA是否受潮以及其运行的状态具有重要意义。
The key to the detection of MOA resistive current is the detection of the phase difference between fundamental component of voltage and fundamental component of leakage current.
MOA阻性电流检测的关键在于电压基波分量与泄漏电流基波分量相位差的检测。
The causes of frequent failures in duty cycle test of gapped MOA and correct selection of parameters of resistor columns are always topics of concern of manufacturers and users.
带串联间隙金属氧化物避雷器动作负载试验频繁失败的原因和如何正确选取电阻片整体参数一直是制造厂和用户关注的问题。
A new electrode and metal oxide surge arrester (MOA) with series air gap is developed, the gap is a pure air one and is composed by high voltage piercing electrode and MOA in itself.
研制了一种由高压穿刺电极和避雷器本体构成的纯空气间隙金属氧化物避雷器。
A new electrode and metal oxide surge arrester (MOA) with series air gap is developed, the gap is a pure air one and is composed by high voltage piercing electrode and MOA in itself.
研制了一种由高压穿刺电极和避雷器本体构成的纯空气间隙金属氧化物避雷器。
应用推荐