mining and quarrying造句
例句与造句
- Flexible cables for use at mines and quarries
矿井和露天矿用挠性电缆 - Electrical installations for open - cast mines and quarries - glossary
露天矿和采石场的电气装置.第1部分:术语词汇 - Electrical installations for open - cast mines and quarries - recommendations for operation
露天矿和采石场的电气装置.第5部分:操作推荐标准 - Specification for cable glands and sealing boxes for association with apparatus for use at mines and quarries
矿井和采石场设备用电缆密封装置和密封盒规范 - Electrical installations for open - cast mines and quarries - recommendations for equipment and ancillaries
露天矿和采石场的电气装置.第3部分:设备及辅助设备推荐标准 - It's difficult to find mining and quarrying in a sentence. 用mining and quarrying造句挺难的
- Electrical installations for open - cast mines and quarries - general recommendations for protection against direct contact and electric shock
露天矿和采石矿的电气装置.第2部分:防止直接接触和触电的一般推荐标准 - Welcome to guiyang kemai machinery and equipment co . ltd as specialize manufacturer and supplier of mining and quarry equipment and tools in china
贵阳科迈机械设备有限公司是一家专业进出口公司，主要从事矿山机具及配套相关产品和技术的进出口业务。 - Electrical installations for open - cast mines and quarries - recommendations for winning , stacking and processing machinery , pumps and low signal level and communications systems
露天矿和采石场的电气装置.第4部分:开采层叠和处理机械设备泵和低信号级及通信系统推荐标准 - In the absence of natural resources , the contribution of primary production ( agriculture and fisheries , mining and quarrying ) to gdp and employment is negligible in hong kong
由于缺乏天然资源，第一级生产行业(渔农业、采矿和石矿业)在本地生产总值及就业人数中所占的比率微不足道。 - Owing to the absence of natural resources , primary production ( agriculture and fisheries , mining and quarrying ) is very small in terms of its contributions to both gdp and employment in hong kong
由于缺乏天然资源，第一级生产行业(渔农业、采矿和石矿业)在本地生产总值及就业人数中所占的比率微不足道。 - Underground work in mines and quarries or in industrial undertakings involving tunnelling operations , and carrying loads unreasonably heavy for the young person s age and physical development are prohibited
禁止青年在?场或石矿场从事地底工作，或在工业经营内担任涉及开掘隧道的工作，以及搬动对他们的年龄和体格来说，属过重的物品。 - Concrete production only , provided that any aggregates imported from the mainland for use in the premises , the locations at which the aggregates are supplied and landed in hong kong and the route by which the aggregates are transported to the premises shall be subject to the prior written approval of the chief geotechnical engineer , mines and quarries of the civil engineering department
只限作混凝土生产，但必须就任何从内地进口以供在上述土地范围内使用的碎石、碎石的供应地及本港的卸货地点，以及碎石运送至上述土地的路线，事先获得土木工程署总土力工程师( ?务及石矿)的书面批准