The preceding chapters discussed the various control elements or units.

在前面几章已经讨论了几种控制元件或器件。

youdao

Roy:This work needs someone who can use alchemy professionally. Can you control elements?

罗伊：这个工作必须熟练的鍊金术。您能操控元素吗？

youdao

Familiar with hydraulic and pneumatic control loops and working theories of common actions and control elements.

熟悉液压和气压控制回路及常用动作、控制元件的工作原理，及具备维护经验。

youdao

He said he and U.S.President Barack Obama agree that whatever new government emerges will have to make a new contract with the international community and its neighbors to build its army, take tough action on corruption, create a more inclusive political process, reach out to moderate elements of the insurgency and stronger control of local affairs.

VOA: standard.2009.10.14

The full-featured controller combines a four-channel mixer section with ergonomically laid-out high-quality control elements and an integrated audio interface, all designed to professional specifications.

ENGADGET: Traktor Kontrol S4 hardware interface set to make the scene this winter

As suggested by a newly uncovered Apple patent, you would be able to manipulate and control graphical elements on your display, such as icons, media files, text and images.

CNN: Apple patent uses 3-D gestures to control an iPad

Mirren has the range and power to play a woman with unprecedented control of the elements, and over men, too.

NEWYORKER: The Tempest