What skills are needed to operate this machinery?
操作这种机器需要什么技能？
Stronger legal safeguards are needed to protect the consumer.
需要有更有力的法律措施来保护消费者。
2,500 gallons of water are needed to produce one pound of beef.
生产一磅牛肉需要2500加仑的水。
Further studies are needed to prove the findings in other populations, settings and climates.
需要进一步的研究来证明在其他人群、环境和气候中的发现。
Tears can be obtained painlessly without invading the body and only tiny amounts are needed to perform highly refined analyses.
人们可以轻松地获取眼泪，不会对身体造成伤害，而且只需要微量的眼泪就可以进行高度精细的分析。
Fewer workers are needed to solder circuit boards.
焊接电路板需要较少的工人。
Drastic measures are needed to clean up the profession.
需要采取极端的措施来整顿这个行业。
Such measures are needed to equalize wage rates between countries.
要使各国的工资水平均等，这些措施是必要的。
Three hundred thousand tons of cereals are needed to replenish stocks.
需要30万吨谷物才能重新装满仓库。
Many of the indigenous insects are needed to pollinate the local plants.
需要很多种土生昆虫给当地植物授粉。
Good studies are needed to lend credence to the notion that genuine progress can be made in this important field.
要有优秀的研究才能使人相信在这一重大领域能取得真正的进步。
Strategies are needed to obtain the optimum classroom construction and perhaps a change in classroom culture and methods of teaching.
我们需要一些策略来将课堂建设做到最好，可能还需要改变课堂文化和教学方法。
We not only want bright students, but also need to attract average students and give them the math skills which are needed to change them into AI designers.
我们不仅需要聪明的学生，还需要吸引普通的学生，让他们掌握成为人工智能设计师所需要的数学技能。
Which packages are needed to meet the requirements?
需要哪些包来满足需求？
However, further studies are needed to clarify this.
不过，还需作进一步研究来澄清这一点。
Longitudinal studies are needed to confirm these findings.
另外还需要开展纵向研究来确认这些发现。
Stringent efforts are needed to ensure treatment adherence.
必须严格管理，确保坚持治疗。
This is useful because both are needed to create or modify an asset.
这是非常有用的，因为对于创建和修改一个资产它们都是必须的。
Thousands of litres are needed to make shoes, hamburgers and microchips.
制造鞋子，汉堡和微芯片需要数千升的水。
But sometimes, additional tools are needed to diagnose the problems.
但有时候可能需要其他的工具帮助进行问题诊断。
Rigorous prospective studies are needed to identify mechanisms and causes.
需要进行严格的前瞻性研究以确定机制和原因。
Build system unchanged but deployment changes are needed to weave aspects.
不用改变构建系统，但为了织入方面，需要修改部署。
Specific blood tests and bone marrow tests are needed to make a diagnosis.
做出诊断需要专门的血液、骨髓的检查。
Some measures are needed to secure the farmland against shifting sand.
需要采取措施使农田免遭流沙的侵袭。
The problem often lies in the concrete actions that are needed to succeed.
问题常常就是缺乏真正的行动。
She says new technologies are needed to deal with some of the causes of hunger.
她说，处理造成饥饿的一些根源需要新技术支持。
If logs are needed to troubleshoot a problem, you can turn up logging as needed.
如果需要使用日志来排除问题，那么可以按需启用日志记录。
Special production processes are needed to make pipes for carrying hydrogen.
为了使管道能达到运输氢气的要求，专门的生产流程是必须的。
Special production processes are needed to make pipes for carrying hydrogen.
为了使管道能达到运输氢气的要求，专门的生产流程是必须的。
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