r [ɑ:(r)]
参考词典中r的常规释义：
基本释义
- n. 字母r
词形变化
- 时 态：ran, run, run·ning, runs
参考例句
- Keep the records of R&D output.
保持设计和开发输出的记录。 - R must be partitioned for each individual component.
对各个组成部分的R必须加以区分。 - Betsy turned up he r nose at these mushrooms.
贝齐对这些蘑菇不屑一顾
- Keep the records of R&D output.
英英解释
4个名词解释
- a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
[同] r, roentgen - (physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole
[同] gas constant, r, universal gas constant
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- the 18th letter of the Roman alphabet
[同] letter r, r - the length of a line segment between the center and circumference of a circle or sphere
[同] r, radius
less ...点击查看……- a unit of radiation exposure; the dose of ionizing radiation that will produce 1 electrostatic unit of electricity in 1 cc of dry air
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