parallel plain crystal gauge 平行平晶规
plain calliper gauge 普通卡规
plain snap gauge 普通外经规
taper plain plug gauge 锥度光滑塞规
Jianghan Plain and Dongting Lake Plain 两湖平原
Bayard-Alpert ionization gauge (B-A gauge) 高效液相色谱法; B-A电离真空计
Brown and Sharpe wire gauge {= B&S wire gauge} 布朗-沙普线规
track gauge level gauge 轨距水平测量仪
a plain 坪
abbreviated plain address 简化明址
Abdominal plain films 腹部平片
abrasion plain 磨蚀平原
abyssal plain 深海平原; 深海底大盆地; 深海底大盆地深海平原
aeolian plain 风成平原
aggradated plain 山前冲积平原; 填积平原; 积夷平原; 加积平原
aggradation plain 积夷平原; 加积平原; 填积平原
aggradational plain 堆积平原; 加积平原
aggregation plain 集积平原; 关键交通基础设施
aircraft spherical plain bearing 航空关节轴承