本文介绍了用PTC8253-5实现机加零件自动包装计数定时的设计，给出了硬件电路和软件程序。
This paper introduces the design of counting and timing device for automated machine-made spares packing with PTC8253-5. The hardware circuit and software are given.
壳牌销售加氮汽油，以保持发动机零件干净。
Shell USES nitrogen enriched gasoline to help keep engine parts clean.
欧加南墨机器的原理和一些企业界用来制造零件及机械运转模型的快速原型机类似。
Organovo's 3d bio-printer works in a similar way to some rapid-prototyping machines used in industry to make parts and mechanically functioning models.
欧加南墨机器的原理和一些企业界用来制造零件及机械运转模型的快速原型机类似。
Organovo’s 3D bio-printer works in a similar way to some rapid-prototyping machines used in industry to make parts and mechanically functioning models.
根据激光扫描平移加旋转法的测量原理，推导出了非球面光学零件面形测量的数学模型；
The mathematical model of the surface shape measurement of aspherical optical components is built up according to the laser scanning measurement principle by the translation & rotation method.
机器前面的梭形板及位于该处的各个零件应仔细擦干并加少量的油，以防生锈。
The shuttle plate and parts in this area at the front of the machine should be well dried and a little oil applied to prevent any rust.
一码长的明黄色机器人好像一只只机械阿拉斯加哈士奇，把五英尺高、装着零件的拖车拉到装配线上。
Yardlong, bright yellow robots like mechanical Alaskan huskies tow five-foot-tall carts of auto parts to the assembly line.
针对快速成型制造中须对零件加支撑的需求，提出一种新的支撑生成方法。
A new support generation method is proposed to fulfill the need of adding support for part by rapid prototyping manufacture.
锻件的余量加放技术是锻造加工的关键技术，叶片锻件的余量加放技术与其它零件有着很大的差异。
The technology of designing the stock of blade forgings is the key in forge work. So there are many differences between turbine blade and other parts in this technology.
锻件的余量加放技术是锻造加工的关键技术，叶片锻件的余量加放技术与其它零件有着很大的差异。
The technology of designing the stock of blade forgings is the key in forge work. So there are many differences between turbine blade and other parts in this technology.
应用推荐