loosen a screw 中文意思是什麼
loosen a screw
解釋
把螺釘放鬆-
To make the tilt front - up, loosen the set screw, insert a screwdriver into the feed bar shaft, and turn it by 90 in the direction of arrow mark
想要向前上方傾斜時,請擰松固定螺絲,把螺絲刀插進送布臺軸,朝箭頭方向轉動90 。 -
Loosen needle clamping screw 2, and hold needle 1 so that long groove a in needle 1 faces exactly to the left
擰松機針固定螺絲2 ,把機針1的長槽a轉到橫向朝左。
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