- May 18 Sun 2008 12:07
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Turbojet English www.tool-tool.comi
- May 18 Sun 2008 11:42
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Jet aircraft English www.tool-tool.com
Bewise Inc. www.tool-tool.com Reference source from the internet.A jet aircraft is an aircraft propelled by jet engines. Jet aircraft fly much faster than propeller-powered aircraft and at higher altitudes -- as high as 10,000 to 15,000 meters, about 33,000 to 49,000 feet (14,900 m). At these altitudes, jet engines achieve maximum efficiency over long distances. The engines in propeller powered aircraft achieve their maximum efficiency at much lower altitudes.
- May 18 Sun 2008 11:08
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Submarine English www.tool-tool.com
- May 17 Sat 2008 22:14
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Naval ship English www.tool-tool.com
- May 17 Sat 2008 14:38
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種々な鉄鋼材料とその特性www.tool-tool.com

Bewise Inc. www.tool-tool.com Reference source from the internet.JIS では鉄鋼を次にように区別しています。鉄は前述した銑鉄、合金鉄、鋳鉄の3つ、鋼は普通鋼、特殊鋼、鋳鍛鋼です。さらに普通鋼は条鋼、厚板、薄板、鋼管、 線材、線のような形状別に、また、特殊鋼は合金鋼、工具鋼、特殊用途鋼などのように性状別に分類されています。このように種々分類されていますが、基本的 には前述したC量によって鉄、鋼、鋳鉄の3つに分けているに過ぎません。鉄にC、Si、Mn、P、Sの5元素が含まれた鋼を炭素鋼又は普通鋼と云います。 この普通鋼にNi、Cr、Moなどの特殊元素が添加されて、特殊な性質を示すような鋼を特殊鋼と呼んでいます。特殊鋼の内、焼入れ・高温焼戻し(調質)を 行って使用するものを合金鋼、工具に用いるものを工具鋼、特殊用途に使う鋼を特殊用途鋼と云っています。表7は鉄鋼材料を分類したものです。以下各種の鋼材について、その特徴を概略解説しましょう。
- May 17 Sat 2008 14:13
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碳化鈦(TiC)與氮化鈦(TiN)超硬皮膜之特性與應用www.tool-tool.com

Bewise Inc. www.tool-tool.com Reference source from the internet. 碳化鈦(TiC)與氮化鈦(TiN)超硬皮膜之特性與應用:
皮膜種類
皮膜硬度
Hv(50g)
密度
g/cm3
顏 色
其 他 性 質
應 用
TiC
3300-4000
4.92
灰黑到有金屬光澤
在室溫下耐磨性最佳
300℃左右易氧化
沖壓模具(沖模與深抽模)
冷作鍛造工具和拉伸模等
TiN
1900-2400
5.43
金黃色
耐磨性比TiC差,但耐蝕性優良,
且導電性良好,
500℃左右尚很穩定
切削工具
不鏽鋼加工用模具
修邊模
熱作鍛造用模具
壓鑄鑄模銷
工 件
材 質
鍍 層
應 用 於
壽命提升
修邊模
SKH-51
TiN
不銹鋼六角螺帽冷鍛
400%
滾齒模
SKH-53
TiN
AISI4630 料齒輪之滾齒
300%
螺紋滾製模
SKD-11
TiC
低碳鋼螺栓之螺紋滾製
400%
成型工具
SKH-10
TiC
螺絲機之應用
460%
切削工具
SKH-51
TiN
切削低碳鋼
660%
拉伸模
SKD-11
TiC
汽車零件冷抽
1500%
成型沖模
SKD-11
TiC,N
汽車零件冷鍛
2000%
- May 17 Sat 2008 13:44
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合成塑料的加工工艺www.tool-tool.com
- May 17 Sat 2008 12:55
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M1 Abrams English www.tool-tool.com
Bewise Inc. www.tool-tool.com Reference source from the internet.M1 Abrams 
M1A1 on a live fire exercise in Iraq, 2003 Type Main battle tank Place of origin United States Service history Used by United States, Australia, Egypt, Kuwait, Saudi Arabia Wars Gulf War, Iraq War Production history Designer Chrysler Defense Designed 1970s Manufacturer General Dynamics Unit cost US$4.35 million (M1A2)[1] Produced 1979–present Variants M1A1, M1A2, M1A2SEP Specifications Weight 67.6 short tons (61.4 tonnes) Length Gun forward: 32.04 ft (9.77 m)
Hull length: 26.02 ft (7.93 m) Width 12 ft (3.66 m) Height 8 ft (2.44 m) Crew 4 (commander, gunner, loader, driver)
Armor Chobham, RHA Primary
armament 105 mm M68 rifled cannon (M1)
120 mm M256 smoothbore cannon (M1A1, M1A2, M1A2SEP) Secondary
armament 1 x .50-caliber (12.7 mm) M2HB heavy machine gun
2 x M240 7.62 mm machine guns (1 pintle-mounted, 1 coaxial) Engine AGT-1500C multi-fuel turbine engine
1500 hp (1119 kW) Power/weight 24.5 hp/tonne Transmission Allison DDA X-1100-3B Suspension Torsion bar Ground clearance 0.48 m (M1, M1A1)
0.43 m (M1A2) Operational
range 465.29 km (289 mi)
With NBC system: 449.19 km (279 mi) Speed Road: 67.72 km/h (42 mph)
Off-road: 48.3 km/h (30 mph)
M1A1 on a live fire exercise in Iraq, 2003
Hull length: 26.02 ft (7.93 m)
armament
120 mm M256 smoothbore cannon (M1A1, M1A2, M1A2SEP)
armament
2 x M240 7.62 mm machine guns (1 pintle-mounted, 1 coaxial)
1500 hp (1119 kW)
0.43 m (M1A2)
range
With NBC system: 449.19 km (279 mi)
Off-road: 48.3 km/h (30 mph)
- May 17 Sat 2008 12:44
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Tank English www.tool-tool.com
Bewise Inc. www.tool-tool.com Reference source from the internet.
Soldiers from U.S. 3d Armored Cavalry Regiment provide overwatch for troops from their M1 Abrams tank in Biaj, Iraq.
- May 17 Sat 2008 12:18
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Internal combustion engine English www.tool-tool.com
- May 17 Sat 2008 12:03
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Ford Motor Company English www.tool-tool.com
Bewise Inc. www.tool-tool.com Reference source from the internet.Ford 
Type Public (NYSE: F) Founded June 17, 1903 Founder Henry Ford Headquarters
Dearborn, Michigan, USA Area served worldwide Key people Henry Ford, Founder
Alan Mulally, President and CEO
William Clay Ford, Jr, Chairman
Industry Automotive Products mainstream/performance vehicles, Automotive parts, Services Automotive financing and services Revenue ▲ US$173.9 billion (2007)[1] Operating income ▲ US$126 million (2007)[1] Net income ▼ US$2.665 billion (2007)[1] Employees 245,000 (2007)[1] Divisions Ford Credit
Ford division
Lincoln
Mercury
Premier Automotive Group
Subsidiaries Automotive Components Holdings
Volvo (cars only) Website www.ford.com
Alan Mulally, President and CEO
William Clay Ford, Jr, Chairman
Ford division
Lincoln
Mercury
Premier Automotive Group
Volvo (cars only)
- May 17 Sat 2008 10:40
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Vacuum English www.tool-tool.com
Bewise Inc. www.tool-tool.com Reference source from the internet.A vacuum is a volume of space that is essentially empty of matter, such that its gaseous pressure is much less than atmospheric pressure. [1] The word comes from the Latin term for "empty," but in reality, no volume of space can ever be perfectly empty. A perfect vacuum with a gaseous pressure of absolute zero is a philosophical concept that is never observed in practice. Physicists often discuss ideal test results that would occur in a perfect vacuum, which they simply call "vacuum" or "free space" in this context, and use the term partial vacuum to refer to real vacuum. The Latin term in vacuo is also used to describe an object as being in what would otherwise be a vacuum.
