A semiconductor memory, enabled to be used efficiently, if defective is provided. When a translated file is received from a translator, a test build of the translated file is executed in a translation test build environment, wherein the translation test build environment is separate from the main software product build environment. Additionally, a valve base area is recessed so as to allow the air channels to open directly into the valve base area during evacuation. In still another aspect, a method includes generating an adjusted covariance matrix and generating a sequence of hash functions from the adjusted covariance matrix. A processor, wherein the processor receives data generated by the first spectrometer system and the second spectrometer system, wherein an optical measurement of a sample under test is produced based on the data generated by the first and second spectrometer systems. The system includes an air gauge configured to sense a distance to a surface of the object and a sensor configured to measure at least one from the group including a relative position of the air gauge and a relative position of the surface of the object.