gravel packing

短语词组

短語

• horizontal gravel -packing 水平井礫石充填
• gravel -packing sand-control 充填防砂
• area of gravel -packing 充填區
• high -pressure gravel-packing and sand-preventing 高壓礫石充填
• flow -type gravel packing 循環式礫石充填
• tside casing high -pressure gravel packing 琯外高壓礫石充填
• low -pressure gravel squeeze packing 低壓擠壓礫石充填
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