Leaves papery, oval in outline, 6 - 7cm long and 8 - 11 cm wide, base rounded or subtruncate, trilobed or sometimes 5 - lobed ; lobes triangular - ovate, rarely ovate - oblong, apex acute or acuminate, margin serrulate, with appressed acute teeth, sometimes entire near base, glabrous or with tufted hairs at vein axils abaxially ; petiole 2 - 3 cm long, glabrous
葉紙質,輪廓闊卵形,長6 - 7厘米,寬8 - 11厘米,基部圓或近截平, 3裂或有時5裂,裂
片三角狀卵形,有時卵狀長圓形,頂端漸尖,邊緣有疏而銳利地
鋸齒,有時近基部全緣,兩面無毛或下面脈腋有簇毛;葉柄長2 - 3厘米,無毛。
Leaves tufted ; stipes 15 - 30 cm long, densely scaly at base, glabrous above ; sterile lamina about 60 cm long and 20 cm wide, simply pinnate ; pinnae numerous, alternate or subopposite, linear - lanceolate, the largest about 12 cm long and 1 cm wide, base cordate, apex acuminate, margin finely toothed ; veins close, forking once or twice and forming areoles near the midrib ; fertile lamina similar to sterile ones, but somewhat reduced, about 8 cm long and 0. 4 cm wide, lower surface almost entirely covered with sporangia
葉簇生;葉柄長15 - 30厘米,基部密被鱗
片,向上近光滑;不育葉
片長約60厘米,寬20厘米,一回羽狀;羽
片多數,互生或近對生,線狀披針形,最長者長達12厘米,寬約1厘米,頂端長漸尖,基部心形,邊緣有細密
鋸齒;葉脈1 - 2次分叉,近中脈形成網眼;能育葉與不育葉相似,但較小,長約8厘米,寬約0 . 4厘米,下部滿布孢子囊。
Machine saw blades for metal - saw blades for hacksawing machines
切割金屬用
鋸床
鋸片.
鋸床用
鋸片
Safety of woodworking machines - circular sawing machines - multiblade rip sawing machines with manual loading and or unloading
木工機械的安全.圓盤
鋸機床.帶手動裝卸和安裝的多刀
片鋸床
Safety of woodworking machines - circular sawing machines - part 4 : multiblade rip sawing machines with manual loading and or unloading ; german version en 1870 - 4 : 2001
木工機械安全性.圓盤
鋸床.第4部分:手工裝卸多刀
片鋸
Full automatic italy " idm " double - end tenoner, sawing the sides of block board smoothly and fine
雙端銑:義大利「 idm 「全自動雙端銑,採用進口合金
鋸片,
鋸切光滑精細。
The results show that the process of concrete sawing with diamond tools is that the impact of diamond sawblade induces the rupture and break of concrete surface layer during high speed sawing ; cement and carpolite become micro chips by the cutting of diamond grits ; steel fiber and steel wire are broken by plastic deformation or pulled out by forces
結果表明:金剛石
鋸片鋸切混凝土的過程表現為高速據切過程中金剛石據
片的沖擊引起混凝土表層斷裂破碎,水泥石子等在切削區內層受到金剛石磨粒的微切削作用形成粉屑,以及鋼纖維和鋼絲發生金屬塑性變形斷裂或被拔拉而斷裂的過程。
In the special fields machine tools for various materials, wall saws, road, rail and canal construction or beyond that with diamond tools with polished diamonds glass cutting diamonds, diamond drills, crack cutter, stones, boards, pipes, pre - assembled units as well as with drill machine, building construction and / or with circular saw blades and industrial and refuse technology is cedima gmbh well - known
Cedima gmbh是一家現代化的、可靠的產品供應商,這家供應商從事鉆床、打孔機,金剛石工具,切割器,圓
鋸片、
鋸片銑刀,臺
鋸,
鋸片、
鋸條,石材加工,墻面
鋸,張緊機械(張緊分離) ,用於各種原料的機械工具,地上建築,街道、軌道和渠道建築,石、板材、管道、成品,工業和垃圾處理技術,通用空氣技術的製造、銷售。
Multi blades slicer is a perfect equipment for cutting granite and marble boards of different thickness
多刀
片鋸石機是切割花崗巖大理石板材的理想設備,能加工各種不同厚度的板材,有切割一
片到十
片等多個品種。
Moisture content of a piece of sawn timber - part 1 : determination by oven dry method
單
片鋸材的含水量.第1部分:由烘乾法測定
Moisture content of a piece of sawn timber - part 2 : estimation by electrical resistance method
單
片鋸材的含水量.第2部分:由電阻法估算
Slicer, the dj granite slicer can be installed 12 saw blades, which are different in specifications, thus to enhance the cutting efficiency, it is
其中dj花崗巖切
片機為
鋸片組合式切
片機,最多可裝12
片鋸片,由大小規格的
鋸片組合而成,以提高切割效率是切割花崗巖或大理石薄板的理想設備。
The complicated compositions and properties of concrete, a kind of brittle material, have an important influence on its sawing process, and consequently on the sawing efficiency of diamond blade
混凝土是一種特殊的復合脆性材料,其組分和性質的復雜性嚴重影響了金剛石
鋸片鋸切加工過程,降低了金剛石
鋸片的使用效率。
Characteristics of concrete sawing process, including chip morphology, sawing surface and sawing force were discussed through the experiments of diamond single grain drawing, single diamond segment sawing and diamond sawblade sawing
摘要通過金剛石單顆粒劃傷、金剛石單個節塊
鋸切和金剛石
鋸片鋸切系列試驗,對混凝土
鋸切加工過程中的切屑形態和切削區表面形貌,以及切削力等基本特徵進行了詳細討論。
Dj granite slicing machine multi blades stone slicer
多刀
片鋸石機
Multi blades stone s
多刀
片鋸石機
Moisture content of a piece of sawn timber - estimation by capacitance method
一
片鋸材的含水量.電容估演算法
Moisture content of a piece of sawn timber - part 3 : estimation by capacitance method
一
片鋸材的含水量.第3部分:電容估演算法
Moisture content of a piece of sawn timber - part 3 : estimation by capacitance method ; german version en 13183 - 3 : 2005
一片鋸材的含水量.第3部分:電容估演算法