high pressure closed loop
high pressure closed loop line
low pressure closed loop system
high pressure high temperature
high pressure high temperature well
high pressure loop line
high pressure loop port
high pressure-high temperature synthesis
High-pressure closed-vessel digestion
high-pressure high-temperature phase tran-sition
normal high-pressure system
permanent high pressure system
temporary high pressure system
closed-loop pressure control
low pressure closed loop
low pressure closed loop line