1)  round-point shovel
圆头铁锹
2)  Round head
圆头
1.
Round head of plate will increase shear amount of plate,which could reduce the plate yield.
钢板圆头会增加钢板的切损量,影响成材率。
3)  cup head
圆头
4)  cuphead
圆头
5)  rd.hd.
圆头
6)  trochocephaly
圆头
7)  pommel
圆头
8)  snap head
圆头
9)  round headed sperm
圆头精子
1.
In order to reveal proteins differentially expressed in round headed sperm in human being, two dimensional gel electrophoresis and mass spectrometry were performed on 30 normal sperm samples from 10 fertile men and 3 sperm samples from a globozoospermic patient.
圆头精子症是一种表现为顶体缺失的男性不育症。
10)  round-nosed steel projectile
圆头钢弹
1.
Shock initiation behaviors of PBX-9404 impacted by round-nosed steel projectiles were studied numerically by means of adding two kinds of reaction-rate into two-dimensional finite element code DYNA2D.
在二维有限元动力分析程序DYNA2D中加入了两种反应速率模型 ,对圆头钢弹撞击PBX 940 4炸药的冲击起爆行为进行了数值模拟研究。
补充资料:元虎头银字圆牌
      中国元代朝廷铸造。为传递军情的使者佩带,作为取信于沿途驿站的凭证。1965 年在甘肃兰州发现 1 面,铁质,通长18厘米、圆径11.7 厘米、重249克。顶端装有供系佩用的环,环座饰虎头纹,错银为毛发。牌面自左至右铸凸起的八思巴蒙古字 5行,字面镀银,依元代习用的译法为:"长生天气力里皇帝圣旨,如违,要罪过者。"与之相同的圆牌在苏联西伯利亚的托木斯克曾出土 1面,但图文不如兰州发现的清晰。
  
  元代百户以上各级军官所佩、用以表示身分的牌为长方形,圆牌一般为差使、巡逻所用。据《元史·兵志》及《刑法志》载,差使圆牌分金字、银字两种。朝廷因军国大事所遣使臣佩金字牌,王公因军情所遣使臣则佩银字牌。兰州发现之牌属于后一种,前一种迄今未发现。至于巡牌,曾在江苏扬州元代旧城基址出土 1面,虽亦呈圆形,但上端饰莲叶而无虎头,且字面不镀金、银,等级应比差使圆牌低。
  

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