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關(guān)注：1
2013-05-23 12:21
求翻譯：The laser guidance system has been developed specifically for use with microtunnelling systems. This system includes a laser source, located in the thrusting pit and pre-aligned accurately with the course of pipeline. This laser beam passes through the product pipe and hits to a target system. This target (an electroni是什么意思？ 待解決
 懸賞分：1
- 離問題結(jié)束還有
The laser guidance system has been developed specifically for use with microtunnelling systems. This system includes a laser source, located in the thrusting pit and pre-aligned accurately with the course of pipeline. This laser beam passes through the product pipe and hits to a target system. This target (an electroni
問題補(bǔ)充： |
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