41.   Most of poor quality, using synthetic materials and dyes.

42.   Not until this century did inventors began to make plastics completely from synthetic materials.

43.   Nowadays, if we women go shopping for clothes, we see garments made from synthetic material which are very warm when worn on sunny, humid days.

44.   The ball will also be different with its feel as its synthetic material is made of tiny individual bubbles.

45.   The boots are reinforced with woven synthetic material similar to that used in bulletproof vests, Vaz said.

46.   The girls have battled a number of serious infections since the surgery as their skulls, which had to be rebuilt with synthetic materials, healed.

47.   The new approach appears to work because the synthetic genetic material is able to penetrate cells but is not immediately broken down by the body.

48.   The statue, cast of a synthetic ceramic material, should return to its pedestal in about three months.

49.   The separated girls had to have their heads rebuilt with synthetic materials and covered with skin grafted from other parts of their bodies.

50.   The team used synthetic material to reconstruct part of the diaphragm, chest and abdominal walls.

a. + material >>共 922
nuclear 4.99%
radioactive 4.13%
building 4.10%
new 3.77%
hazardous 3.53%
genetic 2.61%
bomb-making 1.24%
explosive 1.07%
reading 1.07%
educational 1.05%
synthetic 0.46%
synthetic + n. >>共 310
drug 8.21%
fiber 6.27%
material 4.98%
form 4.52%
version 4.24%
chemical 3.32%
hormone 3.04%
fabric 3.04%
rubber 2.86%
fibre 2.21%
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