English to Czech Tech/Engineering Chemistry; Chem Sci/Eng strictly controlled conditions

 The system has to be designed in such a way as to minimise potential for exposure to workers and the environment during loading and unloading operations. This may include e.g. use of glove box, closed coupling connections, double isolation valves, vapour recovery systems, vacuum transfer, dry lock couplings etc.

V další otázce se ptám i na výraz "dry lock couplings"