In place of office hours , they will use the google moderator service , software that will allow students to vote on the best questions for the professors to respond to in an online chat and possibly video format .
Other combinations of fuel and moderator would have allowed the use of non-enriched uranium , and could indeed have got by without producing plutonium as a waste product , thus establishing a much clearer dividing line between nuclear power and nuclear weapons .
The addition of graphite-a " moderator " - slowed down the neutrons that were being given off , which made them better at splitting other nuclei and enabled a chain reaction to take place even when fissile nuclei were scarce .
In her role as community moderator , barbara de lollis will pass along the latest hotel news , everything from comparisons and changes in loyalty points to the latest in club floor amenities .
Hiring extra help is as easy as adding a new moderator .
租用额外帮助是那样轻松加入新主持人。
I have created a public group that requires new members to be accepted by an admin or moderator .
我已经创建了一个新成员需要通过一个管理员或仲裁者批准的公开群组。
Rickover eventually settled on a reactor design that economised on space by using water as both moderator and coolant-a pressurised water reactor , or pwr .