Having one direction along which double refract ion of light does not take place. Used of a crystal.

单轴晶体的有一个方向的，沿此方向不发生光的双折射。用于晶体。

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When voltage is applied in a first direction an ion bridge forms across through the electrolyte across electrodes making the resistor conductive.

当电压沿第一方向施加时，跨电极穿过电解质形成离子桥，使电阻器导电。

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Ion implantation as a new mutagen caused high mutation rate and wide mutational spectrum with low damage, and it was also mutated in the direction.

离子注入是一种新型的作物诱变技术。离子注入不仅损伤轻，而且突变率高，突变谱广并可定向引变。

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