| 释义 |
stel 英s'tel美s'tel COCA³¹⁵¹¹¹⁺⁴BNC²³⁶²¹³⁺¹
基本例句
=short term emergency limit 短期应急限,=short-term exposure limit 短期暴露限,短期接触限
Audible, visual and vibrator alarms activate in the event of a low, high, TWA or STEL alarm condition.
在低、高、 TWA、 STEL四个级别报警状况出现时发出声光振动警报。 gastoo
First of all, this paper designs the twice civil air defense alarm system's digital spread spectrum communication with STEL-2000A.
首先本文设计了用 STEL-2000A实现二次人防警报系统的数字扩频。 cnki
The main objective of STEL is to understand the structure of the Sun- Earth environment and its dynamic behavior, and to discover the underlying mechanisms that control Sun- Earth relationships.
其主要目标是理解日地环境的结构以及它的动态反应，并探索控制日地关系的潜在机制。210.77.64.197 |