1.
Article 21 The creation, acquisition, change, and loss of fishery right shall not be valid unless they are duly registered [with the competent authority].
第21条(登记生效主义)渔业权之设定、取得、变更及丧失，非经登记不生效力。
2.
In most cases, you are required to mail a card to the company stating when the article was purchased.
不这样做，保修单就不生效或者不产生约束力。
3.
Such assignment is not binding upon the obligor if notice was not given.
未经通知，该转让对债务人不发生效力。
4.
Such assignment will have no effect on the obligor without notice thereof.
未经通知，该转让对债务人不发生效力。”
5.
To remain competitive, we must constantly improve productivity and efficiency.
为了保持竞争力，我们须要不断提高生产力和生产效率。
6.
The Ecological Effects of Atrazine on the Different Fertility Soils;
阿特拉津在不同肥力土壤中的生态效应
7.
Don't wield your power unless you absolutely have to. Power kept in reserve packs twice the punch.
除非不得己，否则请不要滥用手中的权力。如果对手中的权力加以善用，那麽它将产生加倍的效力。
8.
Laws can never be enforced unless fear supports them.--Sophocles
如果法律没有威力支撑，它绝不能生效。——索福克勒斯
9.
A miser's life is a constant exercise of every human faculty in the service of his own personality.
守财奴的生活，便是不断的运用这种力量为自我效劳。
10.
After the entry into force of this Act in its entirety, a country may not accede to earlier Acts of this Convention.
在本议定书全部发生效力以后，各国不得加入本公约前的议定书。
11.
Refusal to carry out the people's court's decisions and rulings that have already become legally effective.
拒不履行人民法院已经发生法律效力的判决、裁定的。
12.
This unfamiliar mode of address produced an effect on Bazarov.
这种不寻常的称呼在巴扎洛夫的心上发生了效力。
13.
The litigant may not lodge an appeal against a legally effective verdict that terminates matrimony.
当事人对已经发生法律效力的解除婚姻关系的判决，不得申请再审。
14.
all judgments and orders of first instance by a people's court that have not been appealed within the prescribed time limit shall be legally effective.
逾期不提起上诉的,人民法院的第一审判决或者裁定发生法律效力.
15.
a provision making the effect of a legal instrument contingent on the occurrence of an uncertain future event.
一条只有在将来一个不确定的事件发生后才具有法律效力的条款.
16.
Acting or producing effectively with a minimum of waste, expense, or unnecessary effort.
高效的以较少的浪费、花消、或不必要的努力去做或生产
17.
Crop Productivity and Carbon Sequestration Effect of Paddy Field under Different Management in Southern Jiangsu;
不同管理模式下苏南稻田作物生产力及土壤固碳效应分析
18.
Study on the Productivity and Efficiency of Six Different Forage and Grain Multiple Cropping Patterns;
六种不同粮草复种方式的生产力和效益比较研究