A single molecule landing on the beam shifts the frequency of the two tones downward and from the accompanying change in resistance the researchers can deduce both the mass of the particle and where it landed along the beam .
Be careful not to bump your head on the beam when you stand up .
当心站起来时头别撞了横梁。
They both looked up and there sitting on the beam was jimminy cricket .
他们俩往上看，在那儿，蟋蟀吉米尼坐在梁柱上。
It is hard to hold a steady position on the beam .
在平衡木上保持平衡是很困难的。
She looks s0 relaxed on the beam .
她在平衡木上的表演看起来非常轻松。
The pupil 's answer was right on the beam .
那个学生的回答是正确的。
Your school report is right on the beam : you followed directions exactly and got all the facts down in the right order .
你的报告写的很对，你准确地按照要求写了，而且每个事实也都按照正确的次序写了进去。
Based on the beam coherence-polarization matrix and the propagation law the polarization properties of partially coherent flat-topped light beams diffracted through a regular polygonal aperture are studied systematically .
Progress on restarting the machine went faster than expected on friday evening and the first beam started circulating in a clockwise direction around the machine about 10 pm said james gillies spokesman for the european organisation
