Warning: file_put_contents(/www/wwwroot/ppbbbu/202081.com/cache/91d913367fe09716ee6bf0a3ecee75e0.txt): failed to open stream: No space left on device in /www/wwwroot/ppbbbu/202081.com/index.php on line 55 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_2020年的事情英文词典
The utility model is suitable for various oil and gas wells and water wells, and can directly do sand anchor operation under pumps. 本實用新型適用於各種油氣井和水井，可直接做泵下砂錨。 ip.com