1.What term describes the process of joining two glass tubes by heating and fusing them together?
1.将两根玻璃管加热并熔合连接在一起的过程叫什么？
2.What is the maximum approximate duration of the aging process for a neon tube?
2.霓虹灯管老化（Aging）过程的最长大约持续多长时间？
3.Which requirement must be satisfied when installing a fluorescent lighting system in an electric sign?
3.在电气招牌中安装荧光灯照明系统时，必须满足以下哪项要求？
4.Which neon tube color generally provides the greatest light penetration?
4.哪种霓虹灯管颜色通常具有最强的光穿透能力？
5.For a neon tube using clear glass with a 15 mm diameter, what is the approximate red-light output per watt?
5.对于使用透明玻璃、直径为 15 mm 的霓虹灯管，其红光输出约为多少流明/瓦（lm/W）？
6.Which factors are primarily considered when selecting the appropriate transformer for a neon sign?
6.选择霓虹招牌适用的变压器时，主要考虑哪些因素？
7.When multiple LED panels are interconnected to transmit programmed information from the sign's main control board, which wiring method is commonly used?
7.当多个 LED 面板相互连接，以便从招牌主控制板传输编程信息时，通常采用哪种布线方式？
8.Which group represents the primary components of a typical LED sign system?
8.以下哪一组代表典型 LED 招牌系统的主要组成部分？
9.Which of the following represents recognized types of LED display formats?
9.以下哪一项代表公认的 LED 显示格式类型？
10.Which components are considered the principal parts of a roadside electronic billboard?
10.以下哪些部件被认为是道路旁电子广告牌（Electronic Billboard）的主要组成部分？
