它有好几种版本，这种适应性使得它的保鲜期长于表面光鲜的垃圾邮件。
It has several forms, and this adaptability gives it a shelf life longer than lacquered Spam.
野外测量的大气环境、目标背景和地物的热力学特性等因素的影响，使得野外测量地物目标表面光谱发射率变得较为复杂。
Field atmospheric conditions, the environmental background of target and the target's thermodynamic properties will make it difficult to collect target's spectral emissivity in field.
由于背抛光面对受光面入射光的反射，使得少子产生率和受光面表面光电压都高于单面抛光片。
Because of the reflection on the back surface the minority carrier generation and illuminated surface photovoltage of both sides polished wafer will be higher than one of single side polished wafer.
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