常見例句

雙語例句

• By bolt's testing in mechanical properties in laboratory and anchoring force in underground, the conclusion are as follows: its bodys owned high intension and may be recovered and reused.
  并通過實驗室力學(xué)性能、井下錨固力測試得出：新型錨桿的桿體強度高，可回收并可多次復(fù)用；
返回 underground testing laboratory