We consider it that the instrument be adjusted each time it

省略了should
这是should型虚拟语气
在表示命令、建议、要求等一类动词后面的从句中,像order,suggest,propose,require,demand,request,insist,command,insist （should） do等.例如：
I suggest that we （should） hold a meeting next week.我建议下周召开个会议.
He insisted that he （should ） be sent there.他要求被派到那儿去.注意：如suggest,insist不表示"建议" 或"坚持要某人做某事时",即它们用于其本意"暗示、表明"、"坚持认为"时,宾语从句用陈述语气.
衍生句型：衍生句型：
It is suggested that… （should) 动词原形 动词原形 It is insisted that… It is requested that … It is recommended that…
衍生词形：衍生词形：
表示“建议、命令、决定”等意义的名词.表示“建议、命令、决定”等意义的名词.Suggestion,recommendation,requirement,proposal,decision ,order,request 等.1.His suggestion is that the question (should) be discussed again.2.The boss made the request that we (should) finish our work at once.

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