The outer barrel of the syringe should be transparent enough; bench line can be seen distinctly.
注射器外套应有足够透明度，能清晰地看到基准线。
The periphery of the barrel is provided with dozens of retractable straight legs, and certain portions of the periphery of the barrel can be provided with transparent Windows.
圆桶的外围安装数十个可以收缩的直腿，圆桶外围的某些部分可以安装透明的窗户。
应用推荐