A wireline bailer that is used to remove sand and debris from the bottom of a well.

The sand bailer is also used as a bottom hole sampler.

捞砂筒也可用作业井底取样器。

Kept abreast of the latest developments; constant revision keeps the book au courant; always au fait on the latest events; up on the news.

了解发展的最新情况；不断的修改使这本书保持先进；总是通晓最新发生的事件；知道最新的新闻。

They are au fait with the latest technology, love travelling to farflung places and are happy to splash out on some of life's luxuries.

他们熟知最新的技术，喜欢远游，也乐于花钱购买一些生活奢侈品。

One likes to hear what is going on, to be au fait as to the newest modes of being trifling and silly.

人们都爱听听天下的新闻，以便熟悉一下人们追求无聊的最新方式。

For those of you not au fait with physiology or anatomy, the enteric tract is the nervous system that regulates digestion.

对于那些不熟悉生理学或解剖学的人来说，肠道是调节消化的神经系统。

He didn't seem very au fait with the regulations.

他好像不熟悉这些规章。

Au fait this is an example of a French expression that has become part of the English Language.

Au fait这本来是法语短语，现在成了英语中的一部分。

It's my first week here so I'm not completely au fait with the system.

这是我来这儿的第一周，所以不完全熟悉这个系统。

That the freedom of marriage compromises the marriage of the same sex or not is appealed by the minority in the recent years. The legal theory need to be considered on the lay of au pair rights of constitutional law.

婚姻自由是否可以包括同性婚姻近年来被少数群体呼吁，其法律理论需要从宪法平等的层面进行探讨。

You would have to hire one or two people to clean all the rooms in the house, plus a few people to take care of the gardens, and probably an au pair or two to take care of the children.

你得雇一俩个人来打扫所有的房间，再雇好几个人来打理花园，也很可能还需要一俩个保姆照顾孩子们。

Modernistic teaching conception of basketball consist of the development of ability of students and the value of basketball in instructing a person, au pair cooperation of students and teachers, and the elements of emotional education.

现代教学理念包含着发展学生能力、挖掘篮球的育人价值、师生平等合作、注重情感教育的基本要素。

It was not unusual in the1990s to hear Sonia Gandhi referred to inDelhisocial circles as "the Italian au pair".

90年代听到索尼亚·甘地愿意在新德里陌生的社会圈过着“意大利人在印度的寄居”生活这是不寻常的。

whether an au pair, nursery, part-time nanny that you share with someone else.

也不管是年轻女性的换工互惠生，托儿所，你与某些人共享的临时保母。

Or someone interviewing an au pair?

或我在面试一位住家阿姨？

At first, the ideal land transition market model is set up, characterized by complete competition and au pair bargaining.

首先建立以完全竞争和平等交易为特征的土地转用理想市场模型，根据开发商需求曲线与农民供给曲线得出土地转用的理想市场均衡价格；

Did you hear about the archer's Au pair?

你有听说换工吗？

Parents who take on an au pair without making certain of her interest in children are asking for trouble.

家长在接受一个以授课、协助家务换取食宿的姑娘时，若不弄清楚地对儿童的兴趣，那无异是自找麻烦。

Is if necessary for the au pair to be first-aid trained?

互惠生必须接受过急救培训吗？

I was an au pair for an expat family in Shanghai.

我曾是上海一个外籍家庭的女佣

To become an Au pair changed me to a better person and I will never forget my year.

做互惠生后让我成为一个更优秀的人，并让我永生难忘。