... beam current 射束电流电子束电流 beam deflection type proportional amplifier 射束偏转形比例放大器 beam hole 束孔 ...
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horizontal beam hole 水平射束孔道
beam hole shielding 孔道屏蔽
beam hole shield 射柱孔屏蔽
beam-entry hole 束入射孔
wall beam with hole 开洞墙梁
hole slab beam 大孔板梁
large hole slab beam 大孔板梁
N a hole in the shield of a nuclear reactor through which a beam of radiation, esp of neutrons, is allowed to escape for experimental purposes 引束孔道
The laser, with its beam of strong light, can drill a hole in a diamond, and yet can be so well controlled that it can be used in delicate eye operations.
凭着本身强烈的光束，激光可在钻石上钻一个洞，而且可以被很好地控制，因此能用于精密的眼部手术。
He made a hole and peering through, could see jewellery, and other objects stacked in piles in the shadows that extended beyond the beam of light penetrating the interior.
他掏了个洞往里瞥去，能看见珠宝，在透进去的光线之外的阴影里面，还有些堆成堆的其他东西。
This phenomenon can be explained by the diffraction effect of the Gaussian beam from the laser induced phase hole in the nonlinear medium caused by Kerr effect and thermo optic effect.
理论分析表明，该现象可以用光克尔效应和热光非线性效应共同作用下的附加相位孔对入射光束的衍射行为来解释。
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