活门
2.Drip, leak, ooze, run, seepbindicate the way in which a liquid escapes from a container or tap.
3.The principle of operation and transfer function for ESV are described.
4.FZN25 and FZRN25 series has mutual-linkage grounding valve of grounding swith between static contact and moving electric torch,so it can make sure safety and convenient maintenance.
5.Any of various devices that regulate the flow of gases, liquids, or loose materials through piping or through apertures by opening, closing, or obstructing ports or passageways.
6.A new butterfly gate, GDF 40-WY-460, has many advantages over the structural design and comprehensive performances.
7.Pressure decrease device and pressure discharge valve were separately put between abdominal bladder and capstan bladder in capstan anti-G suit and then the pressure in the abdominal bladder was reduced to approximately 40% of the capstan pressure.
8.We were both of us nodding, ere anyone invaded our retreat, and then it was Joseph, shuffling down a wooden ladder that vanished in the roof, through a trap: the ascent to his garret, I suppose.
9.Give him a mechanical job to do, from mending the hinges of a gate to sharpening tools, and he would set to work eagerly.
10.Relationship between Helicobacter Pylor(HP)and Chronic Gastritis on Gastric Mucosa Biopsies of 1300 Cases
