人类为什么要使用手动工具？
Operate woodworking machines, such as power saws, jointers, mortisers and shapers, and use hand tools to cut, shape and form parts and components.
操作木工机器，例如电锯，开槽机，榫眼机和牛头刨床，并使用手工具切割，塑造和成型零部件。
Operate machines or equipment or use hand tools to cut, shape, splice, fit and cement rubber materials to form rubber parts or finished rubber products.
操作机器或设备，或使用手工具切割，塑型，拼接，配合和接合橡胶材料，形成橡胶件或成品橡胶制品。
We try to use open source tools as much as possible because of hand off to the clients.
我们试图尽可能的使用开源工具，因为要移交给客户。
You should, however, always use the right tool for the job at hand; knowing more about these two tools will definitely help you pick the right technology for your next project.
但是，应该总是对手边的工作使用适当的工具；更多地了解这两个工具无疑有助于您为下一个项目挑选适当的技术。
Unlike areas at the foot of the peak, where farmers use mechanized tools, those on the lower hills still plow by hand.
不像山峰下部的农田，农民使用机械化工具，但那些在较矮山丘的农田，依然还用手耕犁。
Do not use broken, damaged, or defective hand tools.
不允许使用任何有伤痕或损坏的手工具。
Technique - Be a master of what you do, use existing methods wisely and develop new tools to accomplish the task at hand faster, easier and more efficiently.
技术- - -成为这方面的专家，合理使用现有的方法及改进的新工具去更快，更简单和更有效率的完成任务。
Check that hand tools are in good condition before use.
使用手工具前先检查它是否完好无损。
These connections are sometimes referred to as "hand-tights" because they are designed to be connected and sealed without the use of tools.
因为它们不使用工具进行连接和密封，有时候这些接头称为手紧接头。
Carpentry majors learn how to use hand and power tools to construct, install, and repair wooden structures and fixtures.
木工学专业学习利用手工和电动工具制造，安装和修理木制品。
Because of their small fields, the farmers in china usually do not have big machines. The tools they use are often shovels, a hand-pushed plough, hook and hoe.
因为土地规模小，中国的农民一般都没有大型机械，他们经常用铁锨、犁、锄头。
Because of their small fields, the farmers in china usually do not have big machines. The tools they use are often shovels, a hand-pushed plough, hook and hoe.
因为土地规模小，中国的农民一般都没有大型机械，他们经常用铁锨、犁、锄头。
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