They have campaigned strongly for compulsory registration of dogs.
他们大力开展了狗的强制性登记活动。
Compulsory licences may be granted to qualified enterprises after three years from registration if the patent owner will not or fails to license the patent on reasonable terms.
如果专利所有人在登记后3年内在合理条件下不进行或未能进行专利许可，则符合条件的企业可获得强制性许可。
Housing ownership elements registered in the registration of state-owned land which was transferred for court compulsory transfer of registration of ownership of housing are discussed.
针对已在房屋权属登记机构登记的国有土地上的被法院强制转移给他人的房屋权属转移登记要件进行探讨。
Yet, the real-name registration requirement is not compulsory.
还有，实名注册要求是非强制性的。
Yet, the real-name registration requirement is not compulsory.
还有，实名注册要求是非强制性的。
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