hermetical造句

• Supervision on radiation hygiene in factories using hermetical meters
  对使用含密封源仪表单位的放射卫生监督
• Conservation : hermetical product can be saved for a yeay in the shade and in the dry place
  储存：在阴凉干燥处，未启封的产品储存期为12个月。
• The novel and hermetical structure is suitable for operation under the states of both positive and negative pressure
  新颖的密封式箱体结构，适用于正、负压力状态下的运行。