strain relief cover是什么盖子?有谁知道吗?

strain relief cover是什么盖子?有谁知道吗? The strain relief cover or shell on the 25-pin sub D connector must be removed.strain relief cover.关键是这个词不知道是什么.求专业!不要翻译工具,要解释出这个在中文中是指哪种东西,运用地是哪里. strain relief怎么翻译,指的是哪部分 英语翻译Preparing High Voltage Cable and Connection To Terminal LugTo prepare high voltage cables for assembly to motor,slide cables through high voltage terminalcover and strain relief with ground tines in cover.(1) With cables inserted through strain strain heartburn relief是什么药 relief cover cover cover cover cover cover cover a strain of 句子是这样的：a strain of critical opinion in the 1920s predicted that . the strain strain是什么意思