Bestscope BS-2070f (LED) Fluorescent Compound Biological Microscopes

Here is the rewritten and improved English version of your content, with added details to ensure it exceeds 500 characters and reads naturally: --- Introduction The BS-2070F (LED) series of LED fluorescence microscopes are newly developed instruments that utilize LED technology as the light source. Compared to traditional mercury lamps, LEDs offer a significantly longer lifespan and superior performance. These microscopes are ideal for a wide range of biological and medical applications. Features 1. High-quality fluorescent imaging with an infinite optical system. 2. Long-lasting LED illumination with a life span of up to 50,000 hours. 3. No need for cooling systems or protective devices due to the low heat output of the LED light source. 4. Excitation wavelength of 465–476 nm with high signal-to-noise ratio. 5. Easy to use, with no warm-up time required. 6. A variety of fluorescent filters are available for different experimental needs. Application Areas The BS-2070F (LED) fluorescence microscopes are widely used in cell biology, pathology, immunology, and life sciences. They help researchers study the absorption, transport, and distribution of chemicals within cells. These microscopes are also valuable tools for disease diagnosis and advanced research. Specifications Table

Specifications
Model					BS-2070FB	BS-2070FT
Optional System	Infinite Optional System				Yes	Yes
Viewing Head	Siedentopf Binocular Viewing Head, Inclined at 30°, 360° Rotatable, Interpupillary 48–75mm				Yes
	Siedentopf Trinocular Viewing Head, Inclined at 30°, 360° Rotatable, Interpupillary 48–75mm					Yes
Eyepiece	WF10×/20				Yes	Yes
	WF15×/16				Optional	Optional
Objective	Infinite Plan Achromatic Objective 4×, 10×, 40×, 100×				Yes	Yes
	Infinite Plan Achromatic Objective 20×, 60×				Optional	Optional
Nosepiece	Backward Quadruple Nosepiece				Yes	Yes
Coaxial Coarse & Fine Adjustment, Fine Division 0.002mm, Coarse Stroke 37.7mm per Rotation, Fine Stroke 0.2mm per Rotation, Moving Range 22mm	Yes	Yes
Stage	Rectangular 216×150mm, Cross Travel 78×54mm, Low-positioned X/Y Coaxial Control Knob, Can Hold Two Sides				Yes	Yes
Condenser	Abbe Condenser NA1.25 with Aperture Diaphragm				Yes	Yes
Illumination	LED Illumination 3W, Brightness Adjustable				Yes	Yes
	12V/20W Halogen Lamp, Brightness Adjustable				Optional	Optional
Optional Accessories	Photo Attachment, Video Attachment, Polarization Set, Phase Contrast Kit				Optional	Optional
Reflected Light Source		Excitation	Dichroic Mirror	Barrier Filter
	Blue Excitation	BP460~490	DM505	BA515	Yes	Yes
	Green Excitation	BP510~550	DM570	BA590	Yes	Yes
Lamp	3W LED Lamp (465–476nm)				Yes	Yes
	3W LED Lamp (525–530nm)				Optional	Optional
Immersion Oil	Fluorescent-Free Oil				Yes	Yes
Dimensions & Weight	38cm × 26cm × 51cm, 9kg				Yes	Yes
Note: Yes – Standard Outfit; Optional – Available as an Option

--- This version has been rephrased for clarity, consistency, and natural flow while maintaining all original information and adding depth where necessary.

Backsword

The Chinese backsword has a rich history and was widely used by various Chinese martial arts styles, including the famous Shaolin Kung Fu. It was favored by both infantry and cavalry due to its versatility and effectiveness in close combat.

The design of the Chinese backsword allows for powerful slashing and chopping motions, making it a formidable weapon. The curved blade enhances the cutting ability, while the weight distribution towards the tip gives it a good balance for quick and agile movements.

The dao was not only used in warfare but also played a significant role in Chinese culture and rituals. It was often seen as a symbol of authority and power, and it was also used in traditional Chinese ceremonies and performances.

In conclusion, the Chinese backsword, or dao, is a traditional Chinese weapon with a curved single-edged blade. It has a long history and is widely used in Chinese martial arts. Its design allows for powerful slashing and chopping motions, making it a versatile and effective weapon in close combat.

Cold steel back sword, hanwei back sword, best chinese backsword

Ningbo Autrends International Trade Company , https://www.longquan-swords.com