lead seal liner hanger 铅封衬管悬挂器
amend v. 修改,修订;纠正,改正;改善(土壤)的结构(或肥力);<古>修复;改过自新
责难 v. criticize; blame; censure; reproach; condemn; d
焰 n. flame; blaze。
杀 v. kill; murder; slaughter; slay; execute; extermi
cold adj. 冷的,凉的;冷淡的,冷漠的;冷色调的;已变淡的;失去知觉的;真实的,客
adequate adj. 足够的,适当的,合乎需要的;(品质)足够好的,令人满意的;(质量)达到
滞留 n. retention; hold-up; stagnation; delay; backlog。
鸯 n. symbolic image of intimacy between a man and a
区间 n. interval; range; section; zone; span; region。
soft palate 软腭:硬腭后部的褶皱,部分分隔口腔和咽部。
毒死蜱 n. Dursban; chlorpyrifos; Chlopyrifos。mix. chlorph
禾 n. standing grain; millet; cereal; rice plant。
当然 phr. of course; for sure; without a doubt; without
rotate v. (使)旋转,(使)转动;(人员)轮换,轮值;轮种,轮作;定期调换地点(或位