Fibers offer exceptional transmission in tight bends, with a high core-to-clad ratio and numerical aperture of 0.37.
纤维在急弯下提供特殊的传输，具有高核心覆盖比率和0.37的数值孔径。
The effects of the feed ratio of raw materials, reaction temperature and the dosage of catalyst, etc factors on the new synthesis process of brominated epoxy resin for copper clad panel were studied.
研究了原料配比、反应温度、催化剂等因素对覆铜板专用溴化环氧树脂合成新工艺的影响。
The increase of the preheating and liquid copper temperature of copper clad steel wires makes the cladding ratio down and the remelting time short.
钢芯线预热温度和铜液温度的升高使包覆比下降，重熔时间缩短。
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