A sight glass is installed in the liquid line to indicate the condition of the refrigerant charge and may also indicate the ().
The Tower of London, a historical sight, located in the centre of London, was built by().
_____
If a liquid sight flow indicator in a refrigeration system shows gas bubbles in motion passing inside of the glass, there is ().
In this passage, “out of sight and out of mind” (Lines 3, Para.3) probably means _____.
The second report was ______ by August 2005, but one year later it was still nowhere in sight.
A liquid indicator sight glass is useful in determining whether or not a refrigeration system is sufficiently chargedIt is generally located in the().
D/Pat30 Days Sight与D/A at 30 Days Sight的区别是()
No sooner had he seen the horrible sight while he stood motionlessly.
A sight glass is installed in the liquid line to indicate the condition of the refrigerant charge and may also indicate the ().