| 1. | Marine bronze external screwed draw - off cocks 船用外螺纹青铜泄放旋塞 |
| 2. | Branch pipe valves . draw - off cocks . nominal pressure pn 10 支流阀.给水阀.公称压力,标准压力 |
| 3. | Hv 472 type draw - off unit Hv472型系列卷绕机 |
| 4. | Branch pipe valves . stopcocks and draw - off cocks . general . nominal pressure pn 10 支流管阀.制动旋塞和排放旋塞.总则.公称压力pn 10 |
| 5. | Industrial valves . draw - off cocks and stopcocks . terminology relating particularly to the building trade 工业阀门.排放旋塞和制动旋塞.专门与建筑业有关的术语 |
| 6. | Acoustics - laboratory tests on noise emission from appliances and equipment used in water supply installations - mounting and operating conditions for draw - off taps and mixing valves 声学.由供水设施和设备发出噪音的实验室试验.放水龙头和混合阀的安装和工作条件 |
| 7. | Method for laboratory tests on noise emission from appliances and equipments used in water supply installations - part 2 : mounting and operating conditions for draw - off taps and mixing valves 给水装置中装置和设备噪声的实验室试验方法.第2部分:排水阀和混合阀的安装和操作条件 |
| 8. | Acoustics . laboratory tests on noise emission from appliances and equipment used in water supply installations . part 2 : mounting and operating conditions for draw - off taps and mixing valves 声学.供水设施使用的器械和设备发出噪音的试验室试验.第2部分:排水龙头和混合阀门的安装和操作条件 |
| 9. | To provide necessary data for design bypass pipe , an enlargement to bi liu river reservoir , the following problems have been studied by hydraulic model and theoretical analysis : the energy losses in water head of the bypass pipe system and of the flow - control valve and their scale effects , measurement and calculation of the discharge of the bypass pipe system during the bypass pipe system operation with and without the new water power station , the hydraulic characteristics of the water tunnel and draw - off pipe , the flow rate of the aqueduct bridge and the draw - off pipe and the water elevation of the flow in the aqueduct bridge during the old water power station operation with and without the new water power station 大连市碧流河水库供水工程取水头部由引水渡槽、节制闸、进水闸、泄水闸等建筑物组成。由于本工程场地条件限制,增设旁通管后布置非常紧凑,管道急转角度大且转弯距离较小,对于管内水流流态是否满足要求,需要经过模型试验进行论证,以确保工程的可靠性。旁通管具有上水与泄水要求,对其过流能力也要经试验确定,为碧流河水库增建旁通管设计提供依据。 |
| 10. | The construction methods and caving protection measures for punching high thick and loosen soft coal seam in luling coal mine no . 2 dark tilt well in huaibei coal mine area are introducded . they include small section enlarged after the heading caving , high negative pressure and multi - raw drilling holes and strenous drawing - off , concentrated cross drill holes , cutting while drawing - off and putting the metal frame away 介绍了淮北矿区芦岭煤矿2主暗斜井采用小断面导硐后刷大、高负压多排钻强抽,密集交叉钻孔边掘边抽及设置金属骨架施工方法和防突措施揭穿高突特厚松软煤层。 |