当一个视图被删除时，第一个方法比较结实。
波导缝隙天线比较结实，但是成本太高，微带天线则重量轻、成本低、易于制造，因此很多时候优先考虑。
Waveguide slot antenna is firm, but the cost is too high. The microstrip antenna is light, its cost is low and it is simple to fabricate, so it is a prior consideration at much time.
尽管通宵的雨水把沙浪浸得比较结实，可是还在沿着渔民蹭自行车所经过的道路流动着。黎明时分，他急匆匆地要把所捕捉到东西赶往市场。
Waves of sand firmed by an overnight rain flow along the route of a fisherman pedaling his catch at dawn to trade it for supplies.
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