到达目标后，在圈定好的500米区域内，他们用卷尺，测径规和手持激光设备对所有树木的高度和树围进行测量。
Once there, they use tape measures, callipers and a hand-held laser to measure the heights and girths of all the trees within a 500-square-metre plot.
但后来我们开始在环太平洋沿岸设立海平面水准仪(现在几乎所有的码头和海港都设有一到两台这样的设备)，它们通常被绑在桥墩上，可以测量海面的高度。
But then later on we started installing sea level gauges all around the Pacific Ocean. Pretty much every port and harbor in the world has one or two of these.
到达目标后，在圈定好的500平方米区域内，他们用卷尺，测径规和手持激光设备对所有树木的高度和树围进行测量。
Once there, they use tape measures, callipers and a hand-held laser to measure the heights and girths of all the trees within a 500-square-metre plot.
维护，修理和校准千分表，固定计，高度计和其他测量设备等精密测量仪器。
Maintain, repair and calibrate precision measuring instruments such as dial indicators, fixed gauges, height gauges and other measuring devices.
网络制造要求测量系统和设备具有高度柔性，可以实现系统级的数据通讯与信息集成。
Networked manufacturing needs high flexible measuring system and equipments, which have the capabilities of data transferring and information integration.
设计了电磁铸造的基本设备，研究了小型扁锭的铸造工艺和成型的基本规律，测量了电磁场分布和液柱高度与形状。
Essential equipment of electromagnetic casting (EMC) has been designed, and EMC process for sma1l square ingot and the shaping behaviour of liquid meta1 has been investigated.
设计了电磁铸造的基本设备，研究了小型扁锭的铸造工艺和成型的基本规律，测量了电磁场分布和液柱高度与形状。
Essential equipment of electromagnetic casting (EMC) has been designed, and EMC process for sma1l square ingot and the shaping behaviour of liquid meta1 has been investigated.
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