Practice shows that pressure sensitive resistance as a protective element of rectifier for D. C. supply is preferable to diode.

实践表明，压敏电阻作直流电源的整流器的保护元件优于二极管。

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The protective element can also optionally protect the surgical instrument's viewing element while at least a portion of the surgical instrument is disposed in a body cavity.

当外科手术器械的至少一部分被放置在体腔内时，防护元件还能可选择地保护外科手术器械的观察元件。

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In general, the methods and devices can allow for a surgical instrument to maintain visibility during a surgical procedure using a protective element coupled to the surgical instrument.

总的来说，该方法以及装置使得外科手术器械在外科手术过程中采用与外科手术器械连接的防护元件保持可见性。

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