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41
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42
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43
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44
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45
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46অনুযায়ী Kaminskiǐ, Aleksandr Aleksandrovich“...The CRC Press laser and optical science and technology series...”
প্রকাশিত 1996
গ্রন্থ -
47
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48
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49প্রকাশিত 1981“...Plain language code of practice for the safe use of lasers in surveying, levelling, and alignment....”
The electronic version of this standard may be found at the Standards NZ website.
গ্রন্থ -
50প্রকাশিত 1981“...Plain language code of practice for the safe use of lasers in teaching....”
The electronic version of this standard may be found at the Standards NZ website.
গ্রন্থ -
51
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52
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53
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54
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55
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56
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57
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60
