英语翻译There are many different types and manufacturers of auto

英语翻译
There are many different types and manufacturers of auto-sort technologies on the market today,
but they can be classified into three basic types.These technologies employ some type of
detection signal that can differentiate plastic bottles based on chemical or physical characteristics
when that signal is detected and analyzed by a sensor.
The first type of auto-sortation is through optical sensoring.Optical sorting systems use
visible light to separate plastic bottles by color.The second type are systems based on
“transmission technologies” whereby a signal passes directly through the bottle and is
read by a sensor on the other side of the bottle.Each plastic resin has a characteristic
response to the signal based on its unique chemical composition.The third type are
surface scanning devices where the signals bounce off the surface of the bottle and are
reflected back to the sensor for identification.Similarly,each plastic resin type has its
own unique response.When a sensor detects what it is looking for,it will generally
activate an air jet that will eject or direct the item it has positively identified.The major
sortation technologies in use today include optical,X-ray transmission (XRT),X-ray
fluorescence (XRF),and near-infrared (NIR).
Some auto-sort technologies are capable of multiple sorts,by both resin type and color,
while some are known as “binary-sort” systems -- namely those that identify just one
item and separate it from a stream of bottles.The first generation of auto-sort
technologies were binary-sort systems primarily developed to provide reliable separation
of two visually similar,yet highly incompatible plastics from a recycling perspective --
namely PVC and PET.As has been discussed,PVC is a major contaminant in PET
recycling even at very low concentrations.
The current state-of-the-art in auto-sort technology combines several types of sensors to
provide multiple sorting functions for streams of commingled plastic resin types.For
example,one commercial system uses an XRT sensor to separate PVC bottles,then an
infrared sensor that separates bottles into clear,translucent and opaque categories,
followed by optical sensors that sort bottles by color,and finally an NIR sensor to
separate the bottles by resin category.

有很多不同的种类和制造商的自动排序技术,对市场的今天,
但是它们可以被分为三种基本类型.这些技术的运用某些类型的
探测信号,即能区分塑料瓶的基础上的化学或物理特性
当信号检测和分析,由一个传感器.
第一种类型的自动分拣系统,是通过光学传感.光学分拣系统使用
可见光分开,塑胶瓶,以颜色.第二类是系统基于
"传动技术" ,即一个信号,通过直接通过瓶,并
阅读由一个传感器在另一边的瓶子.每个塑料树脂都有其特点
响应信号的基础上,其独特的化学组成.第三类是
表面上的扫描装置,而信号的弹跳,表面上的瓶子,并
其反射到传感器,以资识别.同样,每一个塑胶树脂类型都有其
自己独特的回应.当传感器检测到的是什么寻找,它一般会
启动喷气将弹出或直接项目,它已经确认.主要
分拣技术,在目前使用的,包括光学,X光传输（ xrt ） ,X射线
荧光分析（ XRF ） ,和近红外（近红外） .
一些自动排序技术,有能力的多种类,由两个树脂型和颜色,
而一些被称为"二元分类"系统-即那些找出一
项目,并分别从流瓶.第一代的自动排序
技术二元分类系统主要是发达国家以提供可靠分离
两个视觉上相似,而高度不相容的塑料从回收的角度来看-
即聚氯乙烯和聚酯.正如已经讨论过,聚氯乙烯是一大污染物宠物
回收,甚至在非常低的浓度.
当前先进的系统,先进的自动分类技术相结合的几种类型的传感器,以
提供多种排序功能,溪流commingled塑胶树脂类型.为
例如,有一个商业系统采用了一个xrt传感器分离PVC瓶,那是一个
红外传感器分隔樽清晰,半透明和不透明的类别,
其次是光学传感器的那种瓶子以颜色,最后一个近红外传感器
分离瓶树脂类.