1.
A Study on the Extraction and Anti-HBV Activity in Vitro of Polysaccharide of Cipangopaludina Chinensis;
中国圆田螺多糖的提取及体外抗乙肝病毒的实验研究
2.
Ultrastructural Studies of the Mature Sperm and Spermatogenesis of Cipangopaludina Chinensis;
中国圆田螺成熟精子和精子发生的超微结构研究
3.
Comparison Research on Cellulase System from Monochamus alternatus and Cipangopaludina chinensis
松墨天牛和中国圆田螺体内纤维素酶系的比较研究
4.
brass bolts and nuts with round head
黄铜圆头螺栓和螺母
5.
" Bolts,round head with oval neck"
GB/T8262-1987圆头椭圆颈螺栓
6.
YangShuo TianLuoNian :The field snail here is very special.
阳朔田螺酿：这里的田螺非常特别。
7.
Taper pipe threads with 60 degree
GB/T12716-199160°圆锥管螺纹
8.
Taper pins with internal thread
GB/T118-1986内螺纹圆锥销
9.
Parallel pins with internal thread
GB/T120-1986内螺纹圆柱销
10.
Slotted round head wood screws
GB/T99-1986开槽圆头木螺钉
11.
Slotted cheese head screws
GB/T65-1985开槽圆柱头螺钉
12.
Round nuts with drilled holes in one face
GB/T815-1988端面带孔圆螺母
13.
Round nuts with set pin holes in side
GB/T816-1988侧面带孔圆螺母
14.
bright mild steel round head wood screw
光亮软钢圆头木螺丝
15.
nickel-plated mild steel round head wood screw
镀镍低碳钢圆头木螺丝
16.
Cup head nib bolts
GB/T13-1988半圆头带榫螺栓
17.
Cup head square neck bolts
GB/T12-1988半圆头方颈螺栓
18.
strong oval head square neck bolt
加强半圆头方颈螺栓