避免双重征税 avoidance of double taxation
麦稻双免 WRNT
避免双重征税协定 double taxation avoidance agreement ; DTTs ; DTAA ; DTA
中加避免双重征税协定 China-Canada Agreement on Avoidance of Double Taxation
互免双方持外交护照人员签证 mutual visa exemption for holders of diplomatic passports
固定厢沟双免耕技术 PBDZ
双向免疫扩散 double immunodiffusion ; DID ; DID double immunodiffusion ; doLlble immtmodiffusion
宽免双重课税安排 double taxation relief arrangement
全双工免提电话 full duplex service phone ; FDSP FullDuplexServicePhone ; FDSP
避免双重征税协议 DTAA
根据实际建筑结构的要求，进行适于不同需求的不同性能双免砖的研制。
On the base of practical architectural configuration's requirements, manufacture different qualities' non-fired and non-steam bricks .
从内容上来看主要可分为六行整体仿形小麦免耕播种机的设计与试验研究和错开式双圆盘开沟器的探索研究。
In terms of the content, the research items include designing and testing six rows no-till wheat planter with whole profile modeling and include researching an opener of stagger double discs.
针对在玉米根茬较大，田地免耕直播时锐角式开沟器易出现挂茬、堵塞等问题，提出了采用错开双圆盘开沟器的方案。
As the acute Angle styled opener often tends to hang the roots and jam during direct seeding in the corn field with big roots, we adopt a new way which USES the stagger double-disk opener.
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