alpha.abbr.=alphabeticalalphan.希腊字母的第一个字母；最初adj.[化]阿尔法位的；主导的；首要的；按字母顺序的alphanumeric-coded character set字母数字编码字符集alpha-adrenergic blocking effectα-肾上腺素能阻断效应alpha-galactosidase A deficiency脂沉积症, d-半乳糖苷酸酶A缺乏症alphanumeric crt display equipment荧光屏字符显示器alpha-Ketoglutaric dehydrogenaseα-酮戊二酸脱氢酶Alpha Trion emerges from hiding.钛师父再度出山。alphanumeric character recognition字母数字字符识别Alpha Microsystems Operating System粒子微系统操作系统alphavirus replicon-based plasmid甲病毒复制子载体Alpha Hull Mod Reinforced Bulkheads孔拉尔

1. That is what a double helix looks like.
   这就是二重螺旋线的形状。
2. A number of silver discs arranged around a central helix to form a spiral.
   这些银圆片围着中心螺旋线排成一个螺旋体。