(一):It must work without a hitch.必须能够无故障运行。
A: It must work without a hitch.
甲：必须能够无故障运行。
B: It has been tested for nine times.
乙：我们已经对其进行了九次测试。
无故障运行:
The technology behind the installation is definitely solid enough to make it run without hitches.
我们所使用的技术绝对足以使其进行无故障运行。
Solid state electronic circuitry assures years of dependable, trouble-free operation.
固化电路保证其可进行长期稳定可靠、无故障运行。

(二):These elements seem to be working well under high voltage.这些元件在高压下似乎性能良好。
A: These elements seem to be working well under high voltage.
甲：这些元件在高压下似乎性能良好。
B: Yes, that's one of the best things.
乙：是的，这是其最大的特点之一。
介绍性能：
It offers good properties for use with other types of paint.
和其它类型的油漆搭配使用性能良好。
Its cooling performance is rather good.
制冷性能非常良好。