制备出两种硼酸酯型制动液，对制动液的性能检测表明，其性能指标达到美国DOT - 4规格要求。
Two kinds of boric ester brake fluid are prepared, and the performance test results show that properties of the brake fluid reach the American DOT 4 standard.
介绍了制备新型硅酸盐复合保温涂料的设备、原料、生产工艺，并检测了其性能指标。
Facilities, raw materials and production technology of the title new type heat-insulating silicate compound paint are introduced. The performance of the product is tested.
洛氏硬度计是检测材料和零件硬度较精密的计量仪器，用来测量材料或者成品半成品的相应硬度，其性能指标主要体现在检测精度和操控性两个方面。
The Rockwell hardness tester is a precision measurement instrument in material and part hardness testing, which is often used in detection of materials, product and half-finished product.
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