Block proof cover can be made of metal or widely used PVC plastic, the structure is simple for the convenience of installation.
防堵罩可采用金属或使用广泛的PVC塑料制造，结构简单，安装方便。
This paper introduces a simple graphic method for designing the planar crank slide block mechanism with urgent returning specific property and gives theoretical proof.
介绍了设计有急回特性的平面曲柄滑块机构的简易图解法，并给出了理论证明。
Dust Proof Equipment can prevent iron chips and dust from entering the block and damaging the groove surface.
防尘设备可以防止进入块和破坏凹槽表面铁屑和灰尘。
Our work in the energy sector is further proof that block chain and Distributed Ledger Technology has potential to significantly transform this space.
撹“我们在能源领域的工作进一步证明，区块链和分布式总账技术有潜力改善该领域所存在的一些问题。
The crystal and concrete combine into the closed water-proof layer to block the erode of water flow and other liquids from all directions.
结晶体与混凝土结构结合成封闭的防水层整体，堵截来自任何方向的水流及其它液体侵蚀。
Our work in the energy sector is further proof that block chain and Distributed Ledger Technology has potential to significantly transform this space.
क“我们在能源领域的工作进一步证明，区块链和分布式总账技术有潜力改善该领域所存在的一些问题。
Our work in the energy sector is further proof that block chain and Distributed Ledger Technology has potential to significantly transform this space.
क“我们在能源领域的工作进一步证明，区块链和分布式总账技术有潜力改善该领域所存在的一些问题。
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