光学、声学 光学 visual line 视线 line of sight 视线†
line of sight 视线 sight 视线；观测，瞄准
line of sight; line of vision; visual line 视线
计算机应用 计算机辅助设计与图形学 释文 view ray 视线
- number density profile
- number distribution function
- number domain
- numbered asteroid
- numbered set
- numbered supernova
- number example
- number exponent
- number field
- number field order
- number field sieve
- number field signature
- number-flux relation
- number group
- number guessing
- numbering
- numbering method according to Thousand-Character Classic
- number interval
- number language
- number length
- number line
- number-magnitude distribution
- number manifold
- number module
- number needed to harm