| 释义 |
main class短语¹⁴⁴⁹⁷²⁺²
基本例句
大类; 主类
Adrenal cortical hormone-type medicines are a main class of steroids and have become the important category of pharmaceuticals used clinically in recent years.
肾上腺皮质激素类药物，作为甾类激素药物中重要的组成部分，是临床上不可缺少的一类药物。 fabiao
Fortune Fasteners, one of the main Class12.9 bolts manufactures in the world, has devoted itself to provide the high quality mechanical fitting screw.
吉祥螺丝致力于发展高质量工业技术机械配件螺丝，是集研发、生产、销售为一体的专业紧固件制造商。 luosi |