The probe unit is hermetically sealed .
探头装置是密封的。
Composite stainless steel tube fiber unit, High strength steel wire armored inside. Hermetically metallic sealed, HDPE sheath.
复合不锈钢管光纤单元，高强度钢丝内铠，金属管密封，高密度聚乙烯护套。
The probe unit is hermetically sealed.
探头装置是密封的。
Unit is hermetically sealed to assure maximum reliability under extreme environmental conditions.
该设备是完全密封的，确保在极端严苛的环境条件下的最大可靠性。
Unit is hermetically sealed to assure maximum reliability under extreme environmental conditions.
该设备是完全密封的，确保在极端严苛的环境条件下的最大可靠性。
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