filler rod

基本解释

A valve body is connected with a tower cover through soft seal, and pressed by a bracket through a bolt. The valve rod, the tower cover and a gland are pressed and sealed by filler.
閥杆、塔型蓋、格蘭通過填料壓緊密封，閥杆與執行機搆通過固定於支架上的推力螺母實現上下運動。
ip.com
Rod-like NCC has perfect crystal structure, relatively high aspect ratio, low density and excellent mechanical properties which make it a new type of green reinforcing filler for rubber.
棒狀NCC的結晶結搆完善、長逕比較大、密度低且具有優良的力學性能，可以作爲綠色環保的新型橡膠補強填料。