infra是什么意思？

infra

英['ɪnfrə] 美['ɪnfrə]

• adv. 在下，以下，下文；

例句

• Determination of Microgram Mineral Oil in Water by Infra Red Spectrum. 红外光谱法测定水中微量矿物油.
• Infra - red absorption takes place only when there is a change of dipole moment. 红外吸收峰仅在有偶极矩变化时才能实现.
• The infra - red spectra of quinones present a number of interesting features. 醌类的红外光谱具有一些有趣的性质.
• Ethylene and trans - dichloroethylene are both inactive in the infra - red in this region. 乙烯和反式二氯乙烯在红外光谱的这个区域都无活性.
• ...the use of infra-red lamps. 红外线灯的使用
• ...infra-red homing missiles... 红外线自动寻的导弹
• An infra-red eye is said to detect the movement of any animal within an angle of 110 degrees at up to 10 metres. 据说红外眼能够探测到110度角范围内远至10米的任何动物的活动。

反义词

• adv.
  infra的反义词之：以下;以后
  supra,
• infra的反义词之：其他释义
  supra,

英英词典释义

• Adverb
  1. (in writing) see below;
  "vide infra"