the ratio between the thickness of the bold line and the thin line is .
4###4:1###1:0.25
举一反三
- The ratio between the thickness of the thin line and the bold line is A: 4 B: 2 C: 0.5 D: 0.25
- The basic line thickness of the drawing refers to the thickness for the ( ) line A: thin B: semi-bold C: bold D: middle
- A line has no thickness, only length anddirection.
- In ___________, every line of the letter begins at the left margin, with a space of one line between paragraphs.
- A line is often skipped between the address and date.
内容
- 0
The line width (thickness) of the cutting symbol should be ( ) A: 0.7b B: 1.0b C: 1.4b D: 2.0b
- 1
which of the following requirements for extension line is correct? A: it should be draw by bold solid line B: about 2 mm from the contour line C: a bout 2 mm beyond the dimension line D: Other lines in the drawing should not be used as the extension line. E: about 2-3mm in length
- 2
Which factors will affect the distances between the centre of the disc and the deck line?
- 3
Please put a complete line space between each paragraph for clear.
- 4
There is no clear line between working hours and private hours in the United States.