reconnaissance

n.

（对某地区的）侦察或观测（尤指为军事目的），（执行侦察任务的）巡逻队、飞行队等；勘探；选点；勘查

reconnaissance survey勘测，踏勘测量

reconnaissance system侦查系统

field reconnaissance实地勘查，野外査勘

reconnaissance satellite侦察卫星；勘测卫星

1. A patrol was sent on reconnaissance.
   一支巡逻队被派去执行侦察任务。
2. The squadron flew a reconnaissance mission.
   该空军中队执行一侦察任务。
3. A reconnaissance plane was circling over the enemy's position.
   一架侦察机正在敌人阵地上空盘旋。
4. The uranium reconnaissance was undertaken in the U.K.
   在英国境内曾开展过铀矿勘察工作。

Software reconnaissance: mapping program features to code
Lunar Reconnaissance Orbiter Camera (LROC) Instrument Overview
National Organics Reconnaissance Survey for Halogenated Organics
Mars Reconnaissance Orbiter's High Resolution Imaging Science Experiment (HiRISE)
Software reconnaissance: mapping program features to code. Softw Maintenance Res Pract 7:49-62
Compact Reconnaissance Imaging Spectrometer for Mars (CRISM) on Mars Reconnaissance Orbiter (MRO)
Context Camera Investigation on board the Mars Reconnaissance Orbiter
A national reconnaissance of pharmaceuticals and other organic wastewater contaminants in the United States--I) groundwater
Hydrated silicate minerals on Mars observed by the Mars Reconnaissance Orbiter CRISM instrument
A national reconnaissance for pharmaceuticals and other organic wastewater contaminants in the United States--II) untreated drinking...