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<link:definition>009 - Disclosure - TREASURY STOCK TRANSACTIONS</link:definition>
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<link:definition>024 - Disclosure - Reconciliation of Weighted Average Shares Outstanding for Basic and Diluted Earnings per Share (Detail)</link:definition>
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<link:definition>026 - Disclosure - Costs and Estimated Earnings in Excess of Billings, Net (Detail)</link:definition>
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<link:definition>027 - Disclosure - Costs and Estimated Earnings in Excess of Billings, Net - Additional Information (Detail)</link:definition>
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<link:definition>028 - Disclosure - Treasury Stock Transactions - Additional Information (Detail)</link:definition>
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<link:definition>029 - Disclosure - Inventories Reported at Lower of Cost or Market (Detail)</link:definition>
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<link:definition>031 - Disclosure - Segment Information - Additional Information (Detail)</link:definition>
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<link:definition>033 - Disclosure - Reconciliation of Segment Identifiable Assets to Consolidated Assets (Detail)</link:definition>
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<link:definition>035 - Disclosure - Investment in Morion Inc - Additional Information (Detail)</link:definition>
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<link:definition>036 - Disclosure - Acquisition Of Elcom Technologies, Inc - Additional Information (Detail)</link:definition>
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<link:definition>038 - Disclosure - Cost, Gross Unrealized Gains, Gross Unrealized Losses and Fair Market Value of Available-for-Sale Securities (Detail)</link:definition>
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<link:definition>039 - Disclosure - Fair Value and Unrealized Losses, Aggregated by Investment Type and Length of Time Individual Securities have been in Continuous Unrealized Loss Position (Detail)</link:definition>
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<link:definition>040 - Disclosure - Fair Value Of Financial Instruments - Additional Information (Detail)</link:definition>
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