Biogeographical divisions of earliest Cambrian small fossils in China

On the nature of the Devonian biogeographical province of the geosynclinal region in Northern China

北方槽区泥盆纪生物地理区的特征

The biogeographical features of the genus and included species are discussed.

对该属及所含物种的动物地理特征进行了初步分析。

The distribution and biogeographical research of tea plant insect pest in Hunan Province

湖南省茶树害虫地理区划分析

The tuning range, walk-off angle, acceptance angle, threshold and conversion efficiency are compared and analyzed, and the effects of walk-off on the beam quality and conversion efficiency of OPO are discussed.

分析比较了调谐范围、离分角、接收角、阈值及转换效率，讨论了离分角对参量输出的光束质量、转换效率的影响。

This paper reports the theoretical study on the transmission efficiency, bandwidth and frequency shift of anomalous dispersion atomic optical filter with off axis incident beam.

本文首次对反常色散原子滤光器在斜入射（0～π/2）条件下的透过率、带宽和频移等特性进行了理论研究；

The Application of the Ray Tracing to the Diffraction Calculation of an Off axial Laser Beam Transformation System

光线追迹在离轴激光变换系统衍射计算中的应用

Now she's off the balance beam.

现在，她要下来了。

The girl lost her balance and fell off the balance beam.

小女孩失去了平衡，从平衡木上摔了下来。

On the basis of anode preparations mentioned above, a continuous deposition of YSZ electrolyte coating was realized through shutting off electron beam current for evaporating NiO ingot, consequently resulting in a continuous deposition of anode and electrolyte coatings for SOFCs.

在采用上述方法制得NiO-YSZ阳极涂层的基础上，关闭用于蒸发NiO的电子束电流，通过连续沉积制备了YSZ电解质涂层，实现了SOFC阳极及电解质涂层的连续沉积。

A radio signal tells the pilot of an airplane when his plane is off the beam.

飞机脱离航道时，会有一个无线电信号告诉驾驶员。

Nevertheless, we must draw lessons from the past to avoid being off the beam.

因此我们必须总结经验教训，避免以后步入歧途。

Never heard of her. you're off the beam.

我从来没有听说过这个人，你搞错了吧。

His scientific study seems to be off the beam.

他的科学研究似乎偏离了初衷。

The procedure of data acquisition was divided in two stages, i.e., on beam and off beam stage, to record the Radioactive Ion Beam ( RIB) and β+ delay particles respectively.

将数据获取过程分为有束和停束两个获取时段，分别完成对次级束流和β+延发粒子的记录。

Rumours about his resignation are way off beam.

关于他要辞职的谣传完全是捕风捉影。

The police are off beam in their search for the criminal.

警察搜寻罪犯时方向错了。

Your answer to the sum is way off beam.

你的总数搞错了。

Your calculation is way off beam.

你的计算完全错误。

On the other hand, a set of time polynomials is constructed based on the observation values from radar and infrared, and after radar is turned off, the target motion states are estimated by this set of polynomials.

另一方面，充分利用雷达、红外同时开机时的量测信息，构造出一组时间多项式，在雷达关机期间，利用该组时间多项式估计目标的运动状态，辅助红外传感器进行跟踪。

After in vitro transcription, the cleavage reaction was shown to have cut off 79.3% target RNA in 1h.

经体外转录出核酶RZ1及靶RNA后，体外切割反应1小时，79.3%的靶RNA即被切开。