ประโยคภาษาจีน : 中文句子 |
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zhēn duì 针对 yǐ shàng 以上 wèn tí 问题 guó wài 国外 cháng 常 xuǎn yòng 选用 nài shí 耐蚀 hé jīn 合金 guǎn cái 管材 jìn xíng 进行 zhì lǐ 治理 dàn 但 fáng fǔ 防腐 chéng běn 成本 gāo 高 nán yǐ 难以 zài 在 jìng biān 靖边 qì tián 气田 yìng yòng 应用 |
Corrosion resisting alloy tubes are often used abroad to solve the above problem, but much more costs are needed and it is difficult to apply such tubes in Jingbian Gas Field. |