缺頭寸 的英文怎麼說
中文拼音 [quētóucùn]
缺頭寸
英文
be out of cash2-
The 6. 8 mm remington spc is limited to relatively short bullets to fit within the maximum cartridge length of 5. 56 mm weapons, so the grendel has a shorter ( 39 mm ) and fatter case, leaving room for longer, low - drag bullets, which retain their velocity out to long ranges
8毫米的雷明頓spc缺少相配套的短彈頭使之合適於5 . 56毫米武器的最大彈藥筒尺寸，因此格倫德爾的彈殼更短（ 39毫米）更胖一點，為遠距離低阻彈頭留出空間。The research results include the follows : present some rules for selecting measuring method according to the characteristics of product, study some problems in data preprocessing such as noise removing, probe radius compensation, edge data extracting, sun - regions merging, and local data mending or re - sampling etc. to ensure the part cad models being built and assembled accurately at dimension and shape in re modeling application, three kinds of model modifying techniques are presented such as model - based modifying, drawing - based modifying and physical model - based modifying
這些問題包括：根據產品表面形狀及建模方法，提出了一些選擇測量方法的原則；研究了消除測量數據噪聲信號、 cmm測頭半徑補償、測量數據邊界處理、測量數據塊拼合、數據補缺與補測等測量數據預處理問題。為了解決復雜外形產品re建模經常遇到的零件cad模型配合問題與尺寸精度、形狀精度問題，作者研究了基於cad模型的修正、基於零件圖樣的修正、基於物理模型的修正等三種模型修正技術。
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