Warning: file_put_contents(/www/wwwroot/ppbbu/laei.cn/cache/076312f0d56d2a438147c214607a302d.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbu/laei.cn/index.php on line 58 gas and sand anchor是什么意思，gas and sand anchor的翻译，gas and sand anchor音标、读音、用法和例句_按摩法牛津词典
The utility model is suitable for various oil and gas wells and water wells, and can directly do sand anchor operation under pumps. 本实用新型适用于各种油气井和水井，可直接做泵下砂锚。 ip.com