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。

《柯林斯英汉双解大词典》

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。

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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。

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Ms Ferguson explained to MSPs that her proposed legislation would introduce compulsory registration for factors.

BBC: Factoring services debate

Conservative peer and former RSPCA chair Baroness Fookes said the organisation had long-supported compulsory registration of dogs as the solution "to manifold problems".

BBC: Mandatory micro-chipping for dogs planned

He pointed to the creation of a voluntary code of practice by trade associations, but said a compulsory registration scheme would simply regulate those in least need "while the cowboy continued to operate".

BBC: Cowboy fears stop essential maintenance