1） S9 f8 T0工程师在建立这一仿真模型时，开发一些工具是必要的。 15 nc
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The development of some instruments is necessary when the engineer established this simulation model. 7W}~c/ %
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2）7再三核对实验结果是重要的。
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It is necessary to check the experimental results over and over. #1m!,t C
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3）理论联系实际是重要的。 5'oWd
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It is necessary to integrate theory with practice. 5{cAawU.
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4）$ a" K( B+ U3 E" j&需要立即维修该测量仪器。 ZO0_:T#Z
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The measuring instrumentation need to be maintained at once. =YPWt>\a}
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5）* F1 ?*仔细用理论值与实验结果进行比较时需要的。 %/ S BJ
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The comparison in details between the theoretic value and experimental result is necessary. nz>A\H
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6）9 b) g# m:没有再校核实验结果的必要。 S!.xmc\
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There is no need to check the experimental results. XP{ nf9&
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7）这条技术规范需要尽快解释。 (&
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The technical specification need to be explained as soon as possible.
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8）这台机器需要修理。 ]8H;LgM2
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This machine needs to be repaired. Y Y]LK%-
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9）对安全措施的需求日益增长，这一点可从自动化系统的日益增多得到证明。 F92n)* [
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The increasing demands for security measurement can be proved by the penetrations of automated systems. *$hO C%(
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