马吕斯听见他把一件重东西放在桌上，也许是他买的那把钝口凿。
Marius heard him lay something heavy on the table, probably the chisel which he had purchased.
简述了板石矿业公司上青矿640主运输平巷在硐口段施工过程中，克服地质条件复杂、多变的现状，采用撞楔超前支架法施工，硐口掘凿获得成功。
The geological condition is complicated and varies often. Using the method of pre-support through hammering wedge, the cave mouth digging work of No. 640 main transportation channel was successful.
我们可能认为我们只是在给一所学校增添设备、提供物资给一个诊所、或为一个遥远的社区凿一口井。
We may think we are only helping to equip a school, supply a clinic, or build a well for a faraway community.
我们可能认为我们只是在给一所学校增添设备、提供物资给一个诊所、或为一个遥远的社区凿一口井。
We may think we are only helping to equip a school, supply a clinic, or build a well for a faraway community.
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