ตัวกรองผลการค้นหา
robot bomb
แปลว่าระเบิดบิน
tear-gas bomb
แปลว่าระเบิดน้ำตา
bottle bomb
แปลว่าระเบิดขวด
cost a bomb
แปลว่าแพงมาก
Office of Atomic Energy for Peace
แปลว่าสำนักงานพลังงานปรมาณูเพื่อสันติ
amu
แปลว่าหน่วยของมวลอะตอม (คำย่อของ Atomic Mass Unit)
แปลว่าพป.
Boron (chemical symbol B)
แปลว่า(english) Element N. 5 of the periodic system. Atomic weight 10.82. It is gray in color, ignites at about 1112 (degrees) F. and burns with a brilliant green flame, but its melting point in a non-oxidizing atmosphere is about 4000 (degrees) F. Boron is used in steel in minute quantities for one purpose only- to increase the hardenability as in case hardening and to increase strength and hardness penetration.
Zinc
แปลว่า(english) Chemical Symbol Zn. Element No. 30 of the periodic system; atomic weight 65.38. Blue-white metal; when pure, malleable and ductile even at ordinary temperatures; melting point 787 (degrees) F.; boiling point 1665 (degrees) F., specific gravity 7.14. Can be electrodeposited; it is extensively used as a coating for steel and sheet zinc finds many outlets, such as dry batteries, etc. Zinc-base alloys are of great importance in die casting. Its most important alloy is brass.