我现在在看一些闸门方面的资料，很多东西不知道如何翻译（部分我自己的翻译在括号中），请各位高手指点，谢谢：
mechanically soiled water
slide sill（底槛）
recess （门槽）
weir sluice gate （堰门）
drives for above floor use
drive on yoke
drive on mounting beam
drive on bracket headstock
drive on headstock
drives for below floor use
manual lifting rod
drive inside shaft
drive in ceiling
suspension eye
pressure sealed wall passage
flaps
flap valves
handgate
flushing inserts
stop plate
dam-beam log
regulating gate
flood valves
流量单位m3/s, m3/l中，s和l代表什么？
installation depth(shut-off device base up to upper edge of square/handwheel)其中的square如何翻译
operating pressure—on the front(on seating pressure)
谢绝机器翻译！谢谢