miniature fluxgate magnetometer
小型磁通闸门磁强计
micropower fluxgate magnetometer
微功率磁通量闸门磁强计
General technical requirements for radial gates
GB/T814-1989弧形闸门通用技术条件
General purpose industrial valves-Flanged iron gate valves
GB/T12232-1989通用阀门法兰连接铁制闸阀
compartment with an airtight door at each end,providing access to a pressurized chamber
气闸室（两端有密闭门可通往增压室）.
valve or gate that controls rate of water flow through a sluice.
控制通过水闸的水速的阀门。
head gate structure [irrigation]
渠首闸门,总水闸门[灌溉]
Bore pressure on the 2nd passage gate of ship lock of Jinghang Great Canal crossing the Qiantang River
京杭运河二通道钱塘江出口船闸闸门涌潮作用力研究
The lock keeper closed the lock gate.
船闸管理员关上了闸门。
Transfer systems such as plain doors, airlock chambers, double door transfer systems, leaktight, connections for waste drums?? ?
普通门、气闸门小室、双层门传输系统、废物桶的密封连接
General purpose industrial valves-Flanged and butt-weld steel gate valves
GB/T12234-1989通用阀门法兰和对焊连接钢制闸阀
Study on Complicated Separation Flow Behind the Reversed Tainter Valve of the Filling and Emptying System for Navigation Lock;
通航船闸输水阀门后复杂分离流试验研究
Navigation condition when entrance area and connecting segment of lock are in bend
船闸口门区与连接段为弯道时的通航条件
sensor sensitivity of fluxgate magnetometer
磁通门磁力仪探头灵敏度
A device for controlling the passage of water or gas through a dam or conduit.
水门，闸门一种用来控制水或气通过一坝堤或水道的装置
Hilly countries can be canalized by the construction of locks,tunnels,and bridge aqueducts.
可以通过修筑闸门、隧道及高架引水道在丘陵地区开通运河。
The thyristor cannot be turned off by the gate, and the thyristor conducts as a diode.
此时晶闸管就象二极管一样导通，不能通过门极关断。
Study on the Mathod of Transformer Inrush Current Inhibition Based on Estmated Flux in Core before Reclosing
基于合闸前铁心内磁通估计的变压器涌流抑制方法研究