On the basis of the references , the authors introduced the approach of blurry evaluation into the classification of soil erosion in the urban area 将模糊评判处理方法引入浙江省土壤侵蚀强度等级的确定。
. aerospace series bolts with mj threads , in titanium alloy ti - p64001 - strength class : 1 100 mpa at ambient temperature - technical specification 钛合金ti - p64001制带mj螺纹的航空航天系列螺栓.强度等级: 1100mpa
Bolts , double hexagon head , relieved shank , long thread , in titanium alloy ti - p64001 , mos2 coated - strength class : 1100 mpa at ambient temperature 细杆长螺纹双六角头镀mos2的钛合金ti - p64001螺栓.强度等级: 1100mpa
For economy and ease of construction , multistory buildings often use a lower concrete strength for the beam - slab system than for the columns 在高层建筑中，柱常常采用高强混凝土，梁板采用强度等级较低的混凝土。
Composite string insulator units for overhead lines with a nominal voltage greater than 1000 v . standard strength classes and end fittings 标称电压超过1000v的架空线用复合绝缘子串组合件.第1部分:标准强度等级和接头配件
Composite string insulator units for overhead lines with a nominal voltage greater than 1000 v - part 1 : standard strength classes and end fittings 额定电压超过1000v的架空线用复合绝缘子串组合件.第1部分:标准强度等级和端接头
Compared with ordinary concrete in the same grade , hslc ' s toughness and elastic modulus are low and its brittleness is relatively high 但与相同强度等级普通混凝土相比，高强轻集料混凝土的抗折强度和弹性模量较低，脆性较大。
Aerospace series - bolts , mj threads , in titanium alloy ti - p64001 - strength class : 1100 mpa at ambient temperature - technical specification ; german and english version en 3818 : 2004 航空航天系列.钛合金ti - p64001制mj螺纹螺栓.强度等级
Aerospace series - bolts , double hexagon head , relieved shank , long thread , in titanium alloy ti - p64001 , mos2 coated - strenght class : 1 100 mpa at ambient temperature 航空航天系列.细杆长螺纹双六角头镀mos2的钛合金ti - p64001螺栓.强度等级: 1100mpa
In the design of the reinforced concrete structures , the strength grade from c30 to c50 of concrete is usually matched with grade ii and iii of steel bars 本文计算了混凝土c30 - c50与、级钢筋每一种强度匹配情况下的力学特性，为工程师选用钢筋和混凝土强度等级组合时提供了依据。
