Bolts , normal spline head , normal or pitch diameter shank , long length mj threads , metallic material , coated or uncoated , strength classes less than or equal to 1100 mpa - dimensions 强度等级小于或等于1100 mpa的有涂层或无涂层长长度mj螺纹由金属材料制成的标称花键头标称或节径杆螺栓.尺寸
Bolts , large hexagonal head , normal or pitch diameter shank , long length mj threads , metallic material , coated or uncoated , strength classes less than or equal to 1100 mpa - dimensions 强度等级小于或等于1100 mpa的有涂层或无涂层长长度mj螺纹的由金属材料制成的大六角头标称或节径杆螺栓.尺寸
Bolts , normal bihexagonal head , normal or pitch diameter shank , long length mj threads , metallic material , coated or uncoated , strength classes less than or equal to 1100 mpa - dimensions 强度等级小于或等于1100 mpa的有涂层或无涂层长长度mj螺纹的由金属材料制成的标称12角螺栓头标称或节径杆螺栓.尺寸
But now it ' s urgent to adopt new methods for calculating the head loss of regional drainage due to some factors such as long length , large flow quantity and probable strong topographic change 由于存在管线长、流量大以及区域地形变化幅度可能较大等因素,建设区域排水系统需要采用新的方法较为准确地计算水头损失。
This paper discussed the method to looking for the position of indicating pointer and long length graduation which belong to the electromagnetical style indicating instrument . using the digital image process and image identify theory 论文论述了电磁式指示仪表表盘指针和刻线位置的数字图像处理和图像识别方法以及电压表、功率表校准的实现过程。
Connection and sealing device for new and old casings used when repairing the broken and damaged casing in well with large area , long length , as well as repairing the wrongly cut casing in well ? ? packer - type casing patch - connector 修复面积大,长度长,破裂,损坏的井内套管,修复错断的井内套管时所用的新旧套管的连接密封装置?封隔器型套管补接器。
Areospace - screws , pan head , internal offset cruciform ribbed or unribbed drive , pitch diameter shank , long length mj threads , metallic material , coated or uncoated , strength classes less than or equal to 1100 mpa - dimensions 航空航天.强度级小于或等于1100mpa的涂层或未涂层金属材料制节径杆长长度mj螺纹的内偏移十字形肋状或非肋状驱动的平头螺钉.尺寸
The system is ideal for ship installation as , if necessary , a number of small units can be arranged to suit accommodation requirements rather than one large installation requiring considerable installation space and long length of piping 该系统适合船用,因必要时,可安装许多独立小系统,以配合舱房要求;而不必安装大型装置,使用宽阔的空间和长长的管道。
[ english ] connection and sealing device for new and old casings used when repairing the broken and damaged casing in well with large area , long length , as well as repairing the wrongly cut casing in well ? ? packer - type casing patch - connector 修复面积大,长度长,破裂,损坏的井内套管,修复错断的井内套管时所用的新旧套管的连接密封装置?封隔器型套管补接器。
The system is ideal for ship installation as , if necessary , a number of small units can be arranged to suit accommodation requirements rather than one large installation requiring considerable installation space and long length of piping 该系统是理想的船舶安装,如有需要,一些小单位可以安装在与之相适应的办公地方,而不是需要大量的安装空间和长的管道的一个大型装置。