Photos of Madsen MG in China - Need Translations

[Hama]

I've found a few photos of the Madsen machinegun in China, but I need help translating all the captions.

First one: http://firearmsworld.net/denmark/madsenlmg/gd.jpg The caption is: 开封兵工厂在民国初年仿制的麦德森机枪

Second one: http://firearmsworld.net/denmark/madsenlmg/gmd3.jpg The caption is: 抗战前夕国民党兵工厂在上海测试麦德森机枪

Third one: http://firearmsworld.net/denmark/madsenlmg/gmd2.jpg The caption is: 麦德森机枪及其软式三脚架的携行方式

Fourth one: http://firearmsworld.net/denmark/madsen ... 4f1ae8.jpg The caption is: 民兵使用的麦德森机枪

^ Credit to four images above from this site: http://firearmsworld.net/denmark/madsen ... senlmg.htm

Fifth one: http://img7.itiexue.net/19317079_1000_1000.jpg The caption is: 国军士兵使用麦德森机枪对日防空作战。

Seventh one: http://img8.itiexue.net/19317080_1000_1000.jpg The caption is: 八路军士兵使用麦德森机枪对日作战的照片。

^ Credit to above two images from this site: http://bbs.tiexue.net/post2_8450590_1.html

Seventh one: http://bbs.tiexue.net/post_11933284_1.html

[L1E1]

I will do it word by word first and then convert into a sentence. You will see the process is quite complicated.

1) 开封 Hoi Fung (City) 兵 solider 工厂 factory 在 in 民国 Republic of China 初 early 年 year 仿制 Carbon Copy 的 's 麦德森 Madsen 机枪 MG.
Showing a carbon copy version of Madsen MG in Hoi Fung arsenal in the early year of Republic of China (1912) era

2) 抗战 SinoJapanese War 前夕 eve 国民党 Nationalist 兵 solider 工厂 factory 在 in 上海 Shanghai 测试 Testing 麦德森 Madsen 机枪 MG.
Testing the Madsen MG in Shanghai National Revolutionary army's arsenal during the eve of SinoJapnese War.

3) 麦德森 Madsen 机枪 MG 及 and 其 it's 软式 Sofe type 三脚架 tripod 的 's 携行 carry 方式 the way.
Demonstrate how to carry a Madsen MG and it's tripod.

4)民兵 Militia 使用 operating 的's 麦德森 Madsen 机枪 MG.
Operating Madsen MG by militia.

5) 国军 National Revolutionary army 士兵 solider 使用 operating 麦德森 Madsen 机枪 MG 对 Anti 日 Japanese 防空 Anti aircraft 作战 Operation。
National Revolutionary army solider operating Madsen MG in AA against Japanese (plane).

7) 八 Eight 路 Route 军 Army 士兵 soldier 使用 operating 麦德森 Madsen 机枪 MG 对 against 日 Japanse 作战 combat 的's 照片 photo.
A photo showing soliders from the Eight Route Army (communist) operating Madsen MG in combat with Japanese.

[Hama]

Thanks L1E1, I know it isn't always straightforward to translate so I appreciate your help.