And purchases special callipers to survey pinhole.是什么意思？

And purchases special callipers to survey pinhole.

并且购买特殊的卡尺来测量销孔.

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

purchases

n. 购买，购置( purchase的名词复数 )，买到的东西；v. 购买( purchase的第三人称单数 )，购买东西；

例句
And purchases special callipers to survey pinhole.
并且购买特殊的卡尺来测量销孔.

special

adj. 特殊的，专门的，专用的，重要的；n. 专车，特价，特刊，特约稿；

例句
He's already altered several of the proposals in his economic plan to accommodate demands of special interests.
他已经改动了经济计划中的几项提议以迁就特殊利益集团的要求。

callipers

n. 测径规，卡钳；

例句
And purchases special callipers to survey pinhole.
并且购买特殊的卡尺来测量销孔.

to

prep. 向，朝着，到，关于，属于；adv. 朝一个方向的，到某种状态，关闭；

例句
I suggest you leave it to an expert...
我建议你把它留给专家来解决。

survey

vi. 测量土地；vt. 调查，勘测，俯瞰；n. 调查（表），调查所，测量，测量部，测量图，概观，检查，鉴定书，环顾；

例句
With the caveat that almost every figure in this survey is suspect, it can at least be said that the world travel and tourism industry is huge...
尽管事先声明此项调查报告中的每个数字都不可靠，但至少可以说，世界旅游观光业的市场庞大。

pinhole

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例句
Desd - foldcharacteristics, non - polluting, pinhole for pelling off, uniformly thickness and width , adequate adequate adhesiveness along its full length, and high durability.
易折叠, 无污染, 易剥离, 宽度及厚度协调粘贴度强,经久耐用.