1. The machine is faulty.
    机器有毛病了。

2. The pictures it sent us were very disappointing because its main mirror was faulty!
    它传送给我们的图像很令人失望，因为它的主要镜子有误差。

3. He soon detected the faulty valve.
    他很快查出了出毛病的阀门。

4. And yet this is the result: here a complete mastery of the language, however stupid the children; there, in most cases, even with people otherwise highly gifted, a faulty and inexact command.
    而结果却是：一边完全掌握了语言，不管孩子多么笨拙；另一边大都对语言的掌握不完善，不准确，即使天赋很高的人，也是如此。

5. One newspaper reported that Chunnel delays have been the result of faulty alarms, and only "partially successful" escape procedures.
    有家报纸报道说，隧道延期是错误警报的结果，也是仅仅"部分奏效"的逃生手段的结果。