Internal parts of the coffee machine咖啡机的内部零件The internal parts described are for a basic pump driven coffee machine with a single boiler and a heat exchange unit. However, the features of a coffee machine vary enormously from the different makes and sizes. For example some machines have two boilers instead of one. The main parts of a coffee machine are the boiler, the pump and the heat exchange unit..内部零件是指一个基本的泵压意式特浓咖啡机，包括单个的锅炉和一个热交换单元。
然而，不同品牌和尺寸的咖啡机，其功能千差万别。
例如某些机器，是有两个锅炉的。
咖啡机的主要部分为锅炉、泵和热交换单元。
The boiler锅炉The boiler is a large, cylindrical, pressure vessel inside the body of the espresso machine that contains water and steam. Inside the boiler is an element that heats the water to produce the steam 锅炉为大圆筒形，在意式浓缩咖啡机的内部，它包含了水和蒸汽的压力容器。
The pump泵The pump is electrically driven and pushes water in and out of the boiler and through the heat exchange unit. As what is used up, the pump replenishes and controls the supple from the water source.泵是通过电力驱动的，它将水在锅炉中推压最后令其通过热交换单元。
当前的水用完时，泵利用水源处的水来补充和控制，以保证流畅。
The heat exchange unit热交换单元The heat exchange unit regulates the temperature of the water before it is pumped into the ground coffee beans to extract. The temperature of the water leaving the heat exchange unit is lower than that in the boiler热交换单元在水被泵入咖啡粉萃取前调节其温度。
离热交换单元的水温应低于锅炉中的水温。
Gauges压力表Gauges are linked to the internal parts but generally are situated on the front of the coffee machine.压力表与内部零件相连接，但一般都位于咖啡机的前部分。
Water level - the water level gauge indicates the amount of water in the boiler水位——水位计指示在锅炉中的水量。
Pressure - the pressure gauge registers two different types of pressure, pump pressure and boiler pressure. Pump pressure controls the pressure of water driven through the ground coffee beans during extraction. Boiler pressure controls the amount of steam available in the boiler from steaming milk.压力——压力表寄存器有两种不同类型的压力，泵的压力和锅炉的压力。
泵的压力控制通过研磨的咖啡豆在萃取过程中的水的压力驱动。
锅炉压力控制从蒸牛奶在锅炉的蒸汽量。
Temperature –the temperature gauge indicates the temperature of the water released from the heat exchange unit and into the ground coffee beans in the group during extraction. The ideal temperature is around 90˚C.温度——温度表指示在萃取过程中释放出来的热交换单元和咖啡阁中的研磨过的咖啡豆的水的温度。
理想的温度是在90摄氏度左右。
External parts of the coffee machine咖啡机的外部部件The external parts of the coffee machine vary in their techinal and design features. Some machine for example, have more automated controls than others.咖啡机的外部零件根据他们的技术和设计特点有很多不同点。
例如，有些机器有更多的自动化控制功能。
On/off switch通/断开关The on/off switch connects the coffee machine to the power supply. It activates the pump and heat mechanisms.通/断开关连接咖啡机的电源。
它用来激活泵和热机制。
Extraction controls提取控制The extraction controls activates the flow of hot water through the group heads, flowing into the cup.提取控制激活热水水流，通过组头，流入杯子。
Filter basket篮式过滤器The filter basket is a perforated, stainless steel container designed to hold measured portions of ground coffee. There are mainly two different sizes, a single and a double.篮式过滤器是一种多孔的不锈钢容器，用来放入测量研磨咖啡粉的部分。
主要有两种不同的尺寸，一个单份大小的和一个双份大小。
Group咖啡制作头The word group describes the assembled group handle and the group head. Coffee machine are normally describes by the amount of groups they posses. Small machine have one group and can go as large as five groups.咖啡制作头描述组装组合手柄和组头。
咖啡机通常由他们拥有的咖啡制作头的个数来区分。
小至只有一个制作头的小型机器，大至五组制作头的大型机器。
Group handle组合手柄The group handle hold the filter basket of ground coffee during the extractions process. It is attached to the machine with the protruding lugs on its side.在萃取过程中，将咖啡粉放置于组合手柄托着的过滤器篮里。
组合手柄的凸缘方便与机器连接。
Steam controlSteam control蒸汽控制The steam control activates the flow of steam from the top of the boiler out through the nozzle of the steam wand.蒸汽控制将从锅炉出来的顶部的蒸汽激活，使其流通过蒸汽棒的喷嘴。
Steam wand蒸汽棒The steam wand consists of a moveable arm with a nozzle at the end. It dispenses steam which foams and heats up milk.蒸汽棒由可动臂与尾部的喷嘴组成。
它分注蒸汽，使牛奶起泡和加热。
Steam nozzle蒸汽喷嘴The steam nozzle is at the end of the steam wand. It usually has four holes that distributes the steam in different directions.蒸汽喷嘴是结束时的蒸汽棒。
它通常有四个孔，蒸汽分布在不同的方向。
Hot water control热水控制The hot water control activates the flow of water from the boiler to the hot water arm.热水控制激活从锅炉到达热水臂的水流。
Hot water arm热水臂The hot water arm dispenses hot water direct from the boiler.热水臂分注直接从锅炉出来的热水。
Cup warmer/tray暖杯/盘The cup warmer is a tray on top of the coffee machine for cups to be stored and warmed ready for use暖杯盘位于咖啡机的顶部，可以使用来存储和温热杯子以备使用。
Drip tray滴水托盘The drip tray collects spills and drips and directs them through a hose into a drainage area, sometimes a bucket, or straight into a drain.滴水托盘收集溢出和滴落的水，并引导他们通过软管进入排水区域，可以连接桶或排水管。