税制漏洞 tax loophole ; tax system loophole

空气喷砂制洞 air-abrasion

风洞控制 wind tunnel control

控制电缆隧洞 control cable tunnel

主动控制风洞 active control wind tunnel

窝洞制备 Cavity preparation

牙窝洞制备 Dental Cavity Preparation

漏洞防制 vulnerability prevention

仓洞制纸公司 chang dong paper mfg. co., ltd

无铬鞣制可持续洞鞋 chrome-free tanned sustainable clogs