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| 51. | Russian made these hill to excavate dino-fossils in1959. |
| 辏?砉?宋?送诰蚩至????粝碌男⊥辽健 |
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| 52. | footing excavation |
| 基础挖掘 |
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| 53. | tap production potential |
| 挖掘生产潜力 |
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| 54. | complete set of hydraulic excavator |
| 水力挖掘机组 |
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| 55. | lacking, probably because the earliest strata are below water level and it has so far been impossible to excavate |
| 也许是因为最初的地面在水平面以下，我们已没法挖掘埋藏在地下的印度河文明城市的最初踪迹。 |
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| -- 来源 -- 英汉非文学 - 文明史 - wenmingshi-xiangtongdechengshi |
好评(10) |
差评() |
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| 56. | 1.to dig; 2.to dig out or excavate |
| 挖 |
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| 57. | When the mineral veins are buried deep in the earth, it is necessary to excavate shafts and tunnels to |
| 如果矿脉在地下埋藏较深，就必须挖掘井巷以通达矿体。井下井巷的种类有许多种。 |
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| 58. | belled excavation |
| 钟形挖掘 |
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| 59. | Excavate coal is primary production link in coal mine production, therefor, Weaving excavate coal working |
| 采煤是煤矿生产中的主要生产环节,因而编制采煤工作面接替计划对煤矿生产具有指导性意义。 |
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| 60. | braced excavation |
| 支撑式挖掘 |
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