poorlittle
第9楼2008/08/16
刮刀不是用来切割的, 锋利应不是其要求。
sharp-edged : 锐边 ?
(from http://dict.cnki.net/dict_result.aspx?tjType=all&searchword=sharp-edged :
Under the conditions of small break loss-of-coolant accident of nuclear power stations, the transient critical flow experiments for 5 sharp-edged tubes with L/D from 1.01 to 25.61 as the break geometries were conducted. The initial pressures were from 4.0 MPa to 22.0 MPa, and the subcoolings of the fluid were from 0℃to 60℃.
针对核电站小破口失水事故,对锐边直管长径比L/D从1.01到25.61的5种破口型式进行了试验研究,其滞止压力从4.0MPa到22.0MPa,入口流体为饱和及过冷水,过冷度从0℃到60℃。 )
p.s. 刀也有钝边的(round edged), 如广东人所称之牛油刀 (用来在面包上涂黄油butter)