handheld computer掌上电脑;手持式电脑;掌上型电脑
handheld television手持式电视机
Handheld system手持式系统
Handheld Listening掌上收听
Mobile Handheld移动手持设备
Handheld XRF便携式元素分析仪
Handheld Slay口袋沙场
Handheld operator手持式操作器
Handheld Systems手持系统
Hardware design portion includes current monitor(network node),long-distance monitoring terminal and handheld collection facility; software design portion includes data receiving system,data memory system and monitoring system.
硬件设计部分包括电流监测器（网络节点）、远程监管终端和手持式采集设备；软件设计部分包括 数据接收 系统、 数据存储 系统和监管 系统。
参考来源 - 远程数据采集系统的软硬件设计方案—《电脑知识与技术·学术交流》—2008年第30期—龙源期刊网Handheld Meter Reading Device (also known as meter-copy device, PDAS, handheld terminal, data acquisition unit, etc. ) is a handheld device which is used in move-data collection.
手持式抄表机(又称抄表器、掌上电脑、手持终端、数据采集器等)是用于移动数据采集的掌上型设备。
参考来源 - 智能手持式抄表机的设计与研发Navigation System is a primary part of Handheld Electronic Map Task (HEMT). Navigation System plays a very important role during the design and development of HEMT.
导航系统是便携式电子地图仪课题的基本组成部分，在便携式电子地图仪课题的设计与开发应用中具有非常重要的作用。
参考来源 - 便携式电子地图仪导航系统软件平台的研制与开发ADJ（形容词） A handheld device such as a camera or a computer is small and light enough to be used while you are holding it. 手持式的; 掌上的
...a handheld electric mixer.
…一个手持式电动搅拌器
N-COUNT（可数名词） Handheld is also a noun. 手持式装置
Users will be able to use their handhelds to look up timetables on the net, search for a local hotel, and check their bank accounts.
用户将能够使用掌上装置查阅网上时刻表，搜索当地旅馆并核对他们的银行账户。