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UNI - KURU TOGA DIVE 0.5mm 鉛芯筆 Mechanical pencil - 迷霧森林 Dense Green0. 5mm Mechanical pencil () Dense Green Refill: Leads (click here) Limited Edition Made in Japan _________________________________ KURU TOGA DIVE 0. 5mm KURU TOGA DIVE Mechanical Pencil Designed with the theme immersed in writing, its the worlds first pencil with an automatic lead extension adjustment function, powered by patented technology. Features: No clicking needed lead extends automatically 5 step adjustable lead extension for custom feel
👉🏻 0.5mm 鉛芯筆 Mechanical pencil
👉🏻 迷霧森林(湖水綠) Dense Green
👉🏻替芯 Refill: 鉛芯 Leads (click here)
❗️期間限定 Limited Edition
🇯🇵 日本製 Made in Japan
_________________________________
✨ KURU TOGA DIVE 自動鉛筆 ✨
以「沉浸於書寫」為主題設計，採用專利技術，是全球首支具備「自動旋轉出芯功能」的鉛筆。
特色：
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- 多切面筆桿，橡膠握位，握感舒適
- 0.5mm 防污筆芯，附橡皮擦
✨ KURU TOGA DIVE Mechanical Pencil ✨
Designed with the theme “immersed in writing,” it’s the world’s first pencil with an automatic lead extension adjustment function, powered by patented technology.
Features:
- No clicking needed — lead extends automatically
- 5-step adjustable lead extension for custom feel
- Remove cap → lead extends instantly, ready to write
- 🧲Magnetic cap with satisfying “snap” sound
- Multi-faceted barrel & rubber grip for comfort
- 0.5mm smudge-proof lead, eraser included
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4.6 ★★★★★
Based on 11 reviews
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Product Reviews
★★★★★ 5
fascinating Memoir of Walking the Camino de Santiago
Format: Kindle
I very much enjoyed reading this memoir. I’m in my mid-70s and have been considering it. Wish I had known about it when I was younger. Pearson described lots of the nitty-gritty details of the challenges and triumphs of the Camino.
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Reviewed in the United States on May 16, 2025
★★★★★ 5
The best on the subject since LDD3
Format: Paperback
I found this book as impacting me as LDD (by Rubini etc) has been in its days, a de-facto standard established to the point that people keep searching for LDD4/LDD5 to these days, that much desirable.
Since LDD3 the last update on 2.6, this book (as well as kernel debugging and hands-on systems programming) is a valuable source of information for modern kernels 5 and 6 for a few years to come.
Knowledgeable and easy to follow, captivating attention to keep on reading it through, impressive for a technical book. LDD4+ has now found reincarnated, thank you very much for all the effort composing it!
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Reviewed in the United States on April 11, 2024
★★★★★ 5
Compelling, informative, and accurate
Format: Kindle
I really could not be happier with the pace and level of detail this book provides. I am a very surface-level Linux user and I wanted to dive in head first. I often find that when I learn about something that I consider really hard or intimidating in tech, I get better at day-to-day use of the tools and my confidence grows. This book is a real confidence-booster if you crave the knowledge of how things work under the hood.
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Reviewed in the United States on October 8, 2024
★★★★★ 5
Great book to read
Format: Paperback, Format: Paperback
Great book to keep you updated about upstream Linux
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Reviewed in the United States on March 18, 2024
★★★★★ 5
A Hands-On and Deep Guide to Linux Kernel Programming
Format: Paperback
Linux Kernel Programming, Second Edition is a very practical and well-structured book for anyone who wants to understand how the Linux kernel works. It focuses on both theory and real hands-on learning. The book uses a clear style and explains complex topics in a simple way. It is designed to help readers build real skills, not just read concepts. It is especially useful for developers who want to work closer to the operating system.
One of the most interesting parts of the book is the strong introduction to kernel programming. It explains how to set up a development environment, build the Linux kernel from source, and write the first kernel module. This section gives readers a solid starting point and builds confidence early in the learning process. It also explains why loadable kernel modules are widely used in real-world projects.
Another highlight is the deep coverage of kernel internals. The book explains core concepts such as kernel architecture, processes, threads, and the difference between user mode and kernel mode. These ideas are often hard to understand, but the book presents them in a clear and structured way. This helps readers see how the operating system really works under the surface.
The memory management section is especially strong and detailed. The book spends several chapters explaining how memory is allocated and managed inside the kernel. It also explains advanced topics such as page allocation, memory reclaim, and the out-of-memory system. These chapters are very useful for understanding performance and stability in real systems.
Another very interesting section is the coverage of CPU scheduling. The book explains how the Linux kernel decides which task runs at a given time. It introduces scheduling policies, priorities, and modern features like control groups. The explanations are practical and supported by examples, which makes the topic easier to follow.
The chapters on kernel synchronization are also a major highlight. They explain concepts such as locks, atomic operations, and deadlock prevention. These topics are critical for writing safe and reliable kernel code. The book also shows real examples and common mistakes, which helps readers avoid problems in their own work.
Another strength of the book is its hands-on approach. It includes many kernel modules, scripts, and examples that readers can try themselves. This makes learning more engaging and helps turn theory into real skills. The focus on practical work makes the book stand out from more theoretical resources.
Overall, this book is a great choice for developers, system programmers, and engineers who want to understand the Linux kernel in depth. It starts with the basics and moves into advanced topics in a smooth way. The combination of clear explanations and practical examples makes it a strong and valuable learning resource.
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Reviewed in the United States on April 16, 2026
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