它的五颜六色效果是由于硅藻的像玻璃外壳包围着机体的二氧化硅细胞壁。
The colorful effect is due to the diatom's silica cell wall, which encases the organism like a glassy shell.
病毒粒子一整个病毒粒子，由被蛋白质外壳包围的核糖核酸或脱氧核糖核酸组成，并构成一个病毒的传染形式。
A complete viral particle consisting of RNA or DNA surrounded by a protein shell and constituting the infective form of a virus.
泵的黄铜叶轮由铸铁扩散器、支架和外壳包围，使泵非常坚固耐用！
A brass impeller surrounded by a cast iron diffuser, bracket, and case makes this pump as strong as those used by your grandfather!
一种控制从储气罐到气动操作装置的气体压力的气体调节组件，其包括包围一对气体调节器的主外壳。
A gas regulating assembly controlling the pressure of gas from a gas reservoir to a pneumatically-operated device includes a primary housing surrounding a pair of gas regulators.
壁炉外壳设置有石材包围层。
The shell of the fireplace is provided with a stone surrounding layer.
被包围的一个封闭的外壳组成的相同的黑暗材料，地铁入口是由一个工业卷帘门夜间担保，阻碍了整个广场的意见。
Surrounded by an enclosure composed of the same dark materials, the subway entrance was secured at night by an industrial roll-down gate, obstructing views throughout the plaza.
该催化剂由该外壳内的绝缘体（105） 包围。
The catalyst is surrounded by insulation (105) inside the housing.
本发明揭示一种风扇(10)，其具有一基座(11)及一保护性外壳(12)，所述保护性外壳(12)包围一电动机(13)及一叶片组合件(14)。
A fan (10) is disclosed having a base (11) and a protective housing (12) encasing an electric motor (13) and a blade assembly (14).
母乳中的游离脂肪酸会摧毁包膜病毒的薄膜，如水痘病毒，被蛋白质外壳内的遗传物质所包围。
Free fatty acids present in milk can damage the membranes of enveloped viruses, such as the chicken pox virus, which are packets of genetic material encased in protein shells.
一外壳(30)封闭开口(18)并包围柱塞(25)的内部，由此在泵本体(11)和外壳(30)间限定一增压室(33)。
A sheath (30) closes the opening (18) and embraces an inner portion of the plunger (25), whereby pumping chamber (33) is defined between the pump body (11) and the sheath (30).
一外壳(30)封闭开口(18)并包围柱塞(25)的内部，由此在泵本体(11)和外壳(30)间限定一增压室(33)。
A sheath (30) closes the opening (18) and embraces an inner portion of the plunger (25), whereby pumping chamber (33) is defined between the pump body (11) and the sheath (30).
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