ตัวกรองผลการค้นหา
หรือคุณกำลังค้นหา obs, Black Plate, ABSOLUTE PRESSURE, absolute, absolute humidity, absolute monarchy, pressure, absolute
obsolete
แปลว่าที่ล้าสมัย, ที่พ้นสมัย, ที่คร่ำครึ, ที่หมดสมัย
แปลว่าไม่ใช้กันแล้ว, หมดสมัย, เลิกใช้
obs
แปลว่าคำย่อของ obscure, obsolete, observation, observatory
Black Plate
แปลว่า(english) A light weight or a thin uncoated steel sheet or strip so called because of its dark oxide coloring prior to pickling. It is manufactured by two different processes. (1) Form sheet bar on single stand sheet mills or sheet mills in tandem. This method is now almost obsolete. (2) On modern, high speed continuous tandem cold reduction mills from coiled hot rolled pickled wide strip into ribbon wound coils to finished gage. Sizes range from 12 to 32 in width, and in thicknesses from 55 lbs. to 275 lbs. base box weight. It is used either as is for stampings, or may be enameled or painted or tin or terne coated.
A Sheet Metal Screw
แปลว่า(english) Sheet metal screws with (a) sharp-pointed ends; and (b) fewer threads per inch than type AB screws; and (c) deeper threads with bettere gripping power than type AB. The industrial Fasteners Institue incorrectly labes type A an “obsolete” thread though it is universally preferred in 18-8 stainless over type AB, especially by the marine industry.