The pigment binder PD is composed of a nucleus with softer monomer content and a shell with harder monomer content.

PD涂料染色粘合剂是由软单体含量较高的核和硬单体含量较高的壳组成。

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The method can avoid the problems that a plastic shell and a shell of fiber reinforced composite material soften and deform and are burnt, or pits appear on a metal shell.

此方法可避免塑胶外壳及纤维强化复合材料外壳产生软化变形、烧毁或金属外壳产生凹洞的问题。

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The valve consists of an electromagnetic loop, a valve core, a replacement spring and a shell and the valve core consists of a retaining iron, a movable bar and a sealing pad.

它由电磁线圈、阀芯、复位弹簧和外壳组成，阀芯由挡铁，动杆和密封垫构成。

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The shell dropped and exploded above Fort Sumter, a United States military base on an island in the harbor.

VOA: special.2009.08.13

We'll start up a shell and we'll try it. All right, we'll just get out of what we were doing here.

我们开一个shell然后试试，先退出现在的这个来。

麻省理工公开课 - 计算机科学及编程导论课程节选

If you took a 15 inch artillery shell moving at the velocity it typically goes at, and take that amount of kinetic energy versus the resistive capacity of a sheet of tissue paper, that's the scale that we're looking at here.

如果你有1个15英寸的炮弹,按照经典的速度移动，会消耗大量的动能,抵抗来自于一张薄纸的阻力，这就是我们在这儿看到的尺度。

麻省理工公开课 - 固态化学导论课程节选

Something held me back: Bubblegum, my first pet and a shell-carrying member of the Helicidae family.

WSJ: Snails Quicken Their Culinary Pace

They simply stop being whoever they were and become a shell that looks and, part of the time, acts like them.

FORBES: Great News in Search For Alzheimer's Cure

Instead of working on his thesis, Keith spent most of two years holed up in the family garage, stripping the body off a Triumph Spitfire and building a new shell from scratch, using foam and 700 pounds of plaster of paris.

FORBES: My Brother-in-Law, The Designer